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Finding the Fourth Proportional to 64,862.80, 89,507.24 and 36,185.46

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Solution

The fourth proportional to 64,862.80, 89,507.24 and 36,185.46 is: 49,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,862.80 : 89,507.24 = 36,185.46 : x
  2. Step 2: Convert to fraction form
    64,862.80/89,507.24 = 36,185.46/x
  3. Step 3: Cross multiply
    64,862.80x = 89,507.24 × 36,185.46
  4. Step 4: Simplify right side
    64,862.80x = 3,238,860,475.39
  5. Step 5: Solve for x
    x = 3,238,860,475.39/64,862.80
  6. Step 6: Final answer
    x = 49,934.02

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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.