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Finding the Fourth Proportional to 65,966.32, 98,859.84 and 36,339.76

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Solution

The fourth proportional to 65,966.32, 98,859.84 and 36,339.76 is: 54,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,966.32 : 98,859.84 = 36,339.76 : x
  2. Step 2: Convert to fraction form
    65,966.32/98,859.84 = 36,339.76/x
  3. Step 3: Cross multiply
    65,966.32x = 98,859.84 × 36,339.76
  4. Step 4: Simplify right side
    65,966.32x = 3,592,542,859.24
  5. Step 5: Solve for x
    x = 3,592,542,859.24/65,966.32
  6. Step 6: Final answer
    x = 54,460.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.