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Finding the Fourth Proportional to 39,987.68, 59,923.18 and 22,491.68

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Solution

The fourth proportional to 39,987.68, 59,923.18 and 22,491.68 is: 33,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.68 : 59,923.18 = 22,491.68 : x
  2. Step 2: Convert to fraction form
    39,987.68/59,923.18 = 22,491.68/x
  3. Step 3: Cross multiply
    39,987.68x = 59,923.18 × 22,491.68
  4. Step 4: Simplify right side
    39,987.68x = 1,347,772,989.14
  5. Step 5: Solve for x
    x = 1,347,772,989.14/39,987.68
  6. Step 6: Final answer
    x = 33,704.71

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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.