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Finding the Fourth Proportional to 63,972.64, 88,276.56 and 38,820.64

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Solution

The fourth proportional to 63,972.64, 88,276.56 and 38,820.64 is: 53,569.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,972.64 : 88,276.56 = 38,820.64 : x
  2. Step 2: Convert to fraction form
    63,972.64/88,276.56 = 38,820.64/x
  3. Step 3: Cross multiply
    63,972.64x = 88,276.56 × 38,820.64
  4. Step 4: Simplify right side
    63,972.64x = 3,426,952,556.20
  5. Step 5: Solve for x
    x = 3,426,952,556.20/63,972.64
  6. Step 6: Final answer
    x = 53,569.03

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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.