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Finding the Fourth Proportional to 65,088.40, 89,821.50 and 36,794.08

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Solution

The fourth proportional to 65,088.40, 89,821.50 and 36,794.08 is: 50,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,088.40 : 89,821.50 = 36,794.08 : x
  2. Step 2: Convert to fraction form
    65,088.40/89,821.50 = 36,794.08/x
  3. Step 3: Cross multiply
    65,088.40x = 89,821.50 × 36,794.08
  4. Step 4: Simplify right side
    65,088.40x = 3,304,899,456.72
  5. Step 5: Solve for x
    x = 3,304,899,456.72/65,088.40
  6. Step 6: Final answer
    x = 50,775.55

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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.