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Finding the Fourth Proportional to 8,590.66, 12,885.58 and 5,034.76

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Solution

The fourth proportional to 8,590.66, 12,885.58 and 5,034.76 is: 7,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.66 : 12,885.58 = 5,034.76 : x
  2. Step 2: Convert to fraction form
    8,590.66/12,885.58 = 5,034.76/x
  3. Step 3: Cross multiply
    8,590.66x = 12,885.58 × 5,034.76
  4. Step 4: Simplify right side
    8,590.66x = 64,875,802.76
  5. Step 5: Solve for x
    x = 64,875,802.76/8,590.66
  6. Step 6: Final answer
    x = 7,551.90

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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.