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Finding the Fourth Proportional to 64,387.32, 88,859.98 and 36,098.46

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Solution

The fourth proportional to 64,387.32, 88,859.98 and 36,098.46 is: 49,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,387.32 : 88,859.98 = 36,098.46 : x
  2. Step 2: Convert to fraction form
    64,387.32/88,859.98 = 36,098.46/x
  3. Step 3: Cross multiply
    64,387.32x = 88,859.98 × 36,098.46
  4. Step 4: Simplify right side
    64,387.32x = 3,207,708,433.63
  5. Step 5: Solve for x
    x = 3,207,708,433.63/64,387.32
  6. Step 6: Final answer
    x = 49,818.95

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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.