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Finding the Fourth Proportional to 74,693.70, 112,073.49 and 39,624.75

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Solution

The fourth proportional to 74,693.70, 112,073.49 and 39,624.75 is: 59,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,693.70 : 112,073.49 = 39,624.75 : x
  2. Step 2: Convert to fraction form
    74,693.70/112,073.49 = 39,624.75/x
  3. Step 3: Cross multiply
    74,693.70x = 112,073.49 × 39,624.75
  4. Step 4: Simplify right side
    74,693.70x = 4,440,884,022.88
  5. Step 5: Solve for x
    x = 4,440,884,022.88/74,693.70
  6. Step 6: Final answer
    x = 59,454.60

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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.