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Finding the Fourth Proportional to 64,197.72, 88,627.68 and 38,708.64

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Solution

The fourth proportional to 64,197.72, 88,627.68 and 38,708.64 is: 53,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,197.72 : 88,627.68 = 38,708.64 : x
  2. Step 2: Convert to fraction form
    64,197.72/88,627.68 = 38,708.64/x
  3. Step 3: Cross multiply
    64,197.72x = 88,627.68 × 38,708.64
  4. Step 4: Simplify right side
    64,197.72x = 3,430,656,959.16
  5. Step 5: Solve for x
    x = 3,430,656,959.16/64,197.72
  6. Step 6: Final answer
    x = 53,438.92

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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.