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Finding the Fourth Proportional to 49,374.40, 74,061.60 and 39,532.90

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Solution

The fourth proportional to 49,374.40, 74,061.60 and 39,532.90 is: 59,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,374.40 : 74,061.60 = 39,532.90 : x
  2. Step 2: Convert to fraction form
    49,374.40/74,061.60 = 39,532.90/x
  3. Step 3: Cross multiply
    49,374.40x = 74,061.60 × 39,532.90
  4. Step 4: Simplify right side
    49,374.40x = 2,927,869,826.64
  5. Step 5: Solve for x
    x = 2,927,869,826.64/49,374.40
  6. Step 6: Final answer
    x = 59,299.35

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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.