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Finding the Fourth Proportional to 60,491.32, 90,755.40 and 30,929.92

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Solution

The fourth proportional to 60,491.32, 90,755.40 and 30,929.92 is: 46,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.32 : 90,755.40 = 30,929.92 : x
  2. Step 2: Convert to fraction form
    60,491.32/90,755.40 = 30,929.92/x
  3. Step 3: Cross multiply
    60,491.32x = 90,755.40 × 30,929.92
  4. Step 4: Simplify right side
    60,491.32x = 2,807,057,261.57
  5. Step 5: Solve for x
    x = 2,807,057,261.57/60,491.32
  6. Step 6: Final answer
    x = 46,404.30

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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.