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Finding the Fourth Proportional to 75,007.39, 112,542.15 and 32,865.70

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Solution

The fourth proportional to 75,007.39, 112,542.15 and 32,865.70 is: 49,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,007.39 : 112,542.15 = 32,865.70 : x
  2. Step 2: Convert to fraction form
    75,007.39/112,542.15 = 32,865.70/x
  3. Step 3: Cross multiply
    75,007.39x = 112,542.15 × 32,865.70
  4. Step 4: Simplify right side
    75,007.39x = 3,698,776,539.26
  5. Step 5: Solve for x
    x = 3,698,776,539.26/75,007.39
  6. Step 6: Final answer
    x = 49,312.16

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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.