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Finding the Fourth Proportional to 66,437.26, 99,713.47 and 34,869.62

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Solution

The fourth proportional to 66,437.26, 99,713.47 and 34,869.62 is: 52,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.26 : 99,713.47 = 34,869.62 : x
  2. Step 2: Convert to fraction form
    66,437.26/99,713.47 = 34,869.62/x
  3. Step 3: Cross multiply
    66,437.26x = 99,713.47 × 34,869.62
  4. Step 4: Simplify right side
    66,437.26x = 3,476,971,133.34
  5. Step 5: Solve for x
    x = 3,476,971,133.34/66,437.26
  6. Step 6: Final answer
    x = 52,334.65

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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.