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Finding the Fourth Proportional to 63,995.76, 88,329.96 and 38,866.32

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Solution

The fourth proportional to 63,995.76, 88,329.96 and 38,866.32 is: 53,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,995.76 : 88,329.96 = 38,866.32 : x
  2. Step 2: Convert to fraction form
    63,995.76/88,329.96 = 38,866.32/x
  3. Step 3: Cross multiply
    63,995.76x = 88,329.96 × 38,866.32
  4. Step 4: Simplify right side
    63,995.76x = 3,433,060,490.95
  5. Step 5: Solve for x
    x = 3,433,060,490.95/63,995.76
  6. Step 6: Final answer
    x = 53,645.12

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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.