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Finding the Fourth Proportional to 62,987.64, 86,920.14 and 36,110.88

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Solution

The fourth proportional to 62,987.64, 86,920.14 and 36,110.88 is: 49,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,987.64 : 86,920.14 = 36,110.88 : x
  2. Step 2: Convert to fraction form
    62,987.64/86,920.14 = 36,110.88/x
  3. Step 3: Cross multiply
    62,987.64x = 86,920.14 × 36,110.88
  4. Step 4: Simplify right side
    62,987.64x = 3,138,762,745.12
  5. Step 5: Solve for x
    x = 3,138,762,745.12/62,987.64
  6. Step 6: Final answer
    x = 49,831.41

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1.5x scale

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.