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Finding the Fourth Proportional to 69,902.76, 104,881.86 and 25,532.40

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Solution

The fourth proportional to 69,902.76, 104,881.86 and 25,532.40 is: 38,308.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,902.76 : 104,881.86 = 25,532.40 : x
  2. Step 2: Convert to fraction form
    69,902.76/104,881.86 = 25,532.40/x
  3. Step 3: Cross multiply
    69,902.76x = 104,881.86 × 25,532.40
  4. Step 4: Simplify right side
    69,902.76x = 2,677,885,602.26
  5. Step 5: Solve for x
    x = 2,677,885,602.26/69,902.76
  6. Step 6: Final answer
    x = 38,308.72

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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.