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Finding the Fourth Proportional to 65,947.64, 91,049.28 and 45,798.08

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Solution

The fourth proportional to 65,947.64, 91,049.28 and 45,798.08 is: 63,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,947.64 : 91,049.28 = 45,798.08 : x
  2. Step 2: Convert to fraction form
    65,947.64/91,049.28 = 45,798.08/x
  3. Step 3: Cross multiply
    65,947.64x = 91,049.28 × 45,798.08
  4. Step 4: Simplify right side
    65,947.64x = 4,169,882,209.38
  5. Step 5: Solve for x
    x = 4,169,882,209.38/65,947.64
  6. Step 6: Final answer
    x = 63,230.20

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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.