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Finding the Fourth Proportional to 8,044,581.70, 12,066,872.55 and 7,162,783.30

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Solution

The fourth proportional to 8,044,581.70, 12,066,872.55 and 7,162,783.30 is: 10,744,174.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,044,581.70 : 12,066,872.55 = 7,162,783.30 : x
  2. Step 2: Convert to fraction form
    8,044,581.70/12,066,872.55 = 7,162,783.30/x
  3. Step 3: Cross multiply
    8,044,581.70x = 12,066,872.55 × 7,162,783.30
  4. Step 4: Simplify right side
    8,044,581.70x = 86,432,393,184,368.42
  5. Step 5: Solve for x
    x = 86,432,393,184,368.42/8,044,581.70
  6. Step 6: Final answer
    x = 10,744,174.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.