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Finding the Fourth Proportional to 67,703.70, 93,432.06 and 39,007.50

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Solution

The fourth proportional to 67,703.70, 93,432.06 and 39,007.50 is: 53,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,703.70 : 93,432.06 = 39,007.50 : x
  2. Step 2: Convert to fraction form
    67,703.70/93,432.06 = 39,007.50/x
  3. Step 3: Cross multiply
    67,703.70x = 93,432.06 × 39,007.50
  4. Step 4: Simplify right side
    67,703.70x = 3,644,551,080.45
  5. Step 5: Solve for x
    x = 3,644,551,080.45/67,703.70
  6. Step 6: Final answer
    x = 53,830.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.