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Finding the Fourth Proportional to 66,547.01, 99,891.60 and 36,956.90

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Solution

The fourth proportional to 66,547.01, 99,891.60 and 36,956.90 is: 55,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.01 : 99,891.60 = 36,956.90 : x
  2. Step 2: Convert to fraction form
    66,547.01/99,891.60 = 36,956.90/x
  3. Step 3: Cross multiply
    66,547.01x = 99,891.60 × 36,956.90
  4. Step 4: Simplify right side
    66,547.01x = 3,691,683,983.18
  5. Step 5: Solve for x
    x = 3,691,683,983.18/66,547.01
  6. Step 6: Final answer
    x = 55,474.83

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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.