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Finding the Fourth Proportional to 35,600.65, 53,404.61 and 13,432.68

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Solution

The fourth proportional to 35,600.65, 53,404.61 and 13,432.68 is: 20,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,600.65 : 53,404.61 = 13,432.68 : x
  2. Step 2: Convert to fraction form
    35,600.65/53,404.61 = 13,432.68/x
  3. Step 3: Cross multiply
    35,600.65x = 53,404.61 × 13,432.68
  4. Step 4: Simplify right side
    35,600.65x = 717,367,036.65
  5. Step 5: Solve for x
    x = 717,367,036.65/35,600.65
  6. Step 6: Final answer
    x = 20,150.39

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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.