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Finding the Fourth Proportional to 64,312.40, 88,755.82 and 38,825.04

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Solution

The fourth proportional to 64,312.40, 88,755.82 and 38,825.04 is: 53,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,312.40 : 88,755.82 = 38,825.04 : x
  2. Step 2: Convert to fraction form
    64,312.40/88,755.82 = 38,825.04/x
  3. Step 3: Cross multiply
    64,312.40x = 88,755.82 × 38,825.04
  4. Step 4: Simplify right side
    64,312.40x = 3,445,948,261.73
  5. Step 5: Solve for x
    x = 3,445,948,261.73/64,312.40
  6. Step 6: Final answer
    x = 53,581.40

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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.