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Finding the Fourth Proportional to 64,314.97, 88,726.39 and 38,807.11

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Solution

The fourth proportional to 64,314.97, 88,726.39 and 38,807.11 is: 53,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,314.97 : 88,726.39 = 38,807.11 : x
  2. Step 2: Convert to fraction form
    64,314.97/88,726.39 = 38,807.11/x
  3. Step 3: Cross multiply
    64,314.97x = 88,726.39 × 38,807.11
  4. Step 4: Simplify right side
    64,314.97x = 3,443,214,540.98
  5. Step 5: Solve for x
    x = 3,443,214,540.98/64,314.97
  6. Step 6: Final answer
    x = 53,536.75

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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.