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Finding the Fourth Proportional to 63,989.22, 88,290.09 and 38,833.86

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Solution

The fourth proportional to 63,989.22, 88,290.09 and 38,833.86 is: 53,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.22 : 88,290.09 = 38,833.86 : x
  2. Step 2: Convert to fraction form
    63,989.22/88,290.09 = 38,833.86/x
  3. Step 3: Cross multiply
    63,989.22x = 88,290.09 × 38,833.86
  4. Step 4: Simplify right side
    63,989.22x = 3,428,644,994.45
  5. Step 5: Solve for x
    x = 3,428,644,994.45/63,989.22
  6. Step 6: Final answer
    x = 53,581.60

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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.