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Finding the Fourth Proportional to 63,938.32, 88,234.98 and 35,643.40

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Solution

The fourth proportional to 63,938.32, 88,234.98 and 35,643.40 is: 49,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,938.32 : 88,234.98 = 35,643.40 : x
  2. Step 2: Convert to fraction form
    63,938.32/88,234.98 = 35,643.40/x
  3. Step 3: Cross multiply
    63,938.32x = 88,234.98 × 35,643.40
  4. Step 4: Simplify right side
    63,938.32x = 3,144,994,686.13
  5. Step 5: Solve for x
    x = 3,144,994,686.13/63,938.32
  6. Step 6: Final answer
    x = 49,187.95

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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.