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Finding the Fourth Proportional to 45,885.87, 68,814.54 and 22,178.70

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Solution

The fourth proportional to 45,885.87, 68,814.54 and 22,178.70 is: 33,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,885.87 : 68,814.54 = 22,178.70 : x
  2. Step 2: Convert to fraction form
    45,885.87/68,814.54 = 22,178.70/x
  3. Step 3: Cross multiply
    45,885.87x = 68,814.54 × 22,178.70
  4. Step 4: Simplify right side
    45,885.87x = 1,526,217,038.30
  5. Step 5: Solve for x
    x = 1,526,217,038.30/45,885.87
  6. Step 6: Final answer
    x = 33,261.16

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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.