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Finding the Fourth Proportional to 64,331.79, 88,777.88 and 36,038.08

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Solution

The fourth proportional to 64,331.79, 88,777.88 and 36,038.08 is: 49,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,331.79 : 88,777.88 = 36,038.08 : x
  2. Step 2: Convert to fraction form
    64,331.79/88,777.88 = 36,038.08/x
  3. Step 3: Cross multiply
    64,331.79x = 88,777.88 × 36,038.08
  4. Step 4: Simplify right side
    64,331.79x = 3,199,384,341.67
  5. Step 5: Solve for x
    x = 3,199,384,341.67/64,331.79
  6. Step 6: Final answer
    x = 49,732.56

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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.