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Finding the Fourth Proportional to 45,866.40, 68,733.72 and 19,564.08

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Solution

The fourth proportional to 45,866.40, 68,733.72 and 19,564.08 is: 29,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,866.40 : 68,733.72 = 19,564.08 : x
  2. Step 2: Convert to fraction form
    45,866.40/68,733.72 = 19,564.08/x
  3. Step 3: Cross multiply
    45,866.40x = 68,733.72 × 19,564.08
  4. Step 4: Simplify right side
    45,866.40x = 1,344,711,996.78
  5. Step 5: Solve for x
    x = 1,344,711,996.78/45,866.40
  6. Step 6: Final answer
    x = 29,318.02

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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.