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Finding the Fourth Proportional to 39,893.39, 59,839.90 and 10,308.71

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Solution

The fourth proportional to 39,893.39, 59,839.90 and 10,308.71 is: 15,463.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.39 : 59,839.90 = 10,308.71 : x
  2. Step 2: Convert to fraction form
    39,893.39/59,839.90 = 10,308.71/x
  3. Step 3: Cross multiply
    39,893.39x = 59,839.90 × 10,308.71
  4. Step 4: Simplify right side
    39,893.39x = 616,871,824.79
  5. Step 5: Solve for x
    x = 616,871,824.79/39,893.39
  6. Step 6: Final answer
    x = 15,463.01

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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.