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Finding the Fourth Proportional to 64,387.79, 88,864.26 and 35,713.79

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Solution

The fourth proportional to 64,387.79, 88,864.26 and 35,713.79 is: 49,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,387.79 : 88,864.26 = 35,713.79 : x
  2. Step 2: Convert to fraction form
    64,387.79/88,864.26 = 35,713.79/x
  3. Step 3: Cross multiply
    64,387.79x = 88,864.26 × 35,713.79
  4. Step 4: Simplify right side
    64,387.79x = 3,173,679,520.15
  5. Step 5: Solve for x
    x = 3,173,679,520.15/64,387.79
  6. Step 6: Final answer
    x = 49,290.08

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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.