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Finding the Fourth Proportional to 69,663.19, 104,461.84 and 26,988.60

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Solution

The fourth proportional to 69,663.19, 104,461.84 and 26,988.60 is: 40,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,663.19 : 104,461.84 = 26,988.60 : x
  2. Step 2: Convert to fraction form
    69,663.19/104,461.84 = 26,988.60/x
  3. Step 3: Cross multiply
    69,663.19x = 104,461.84 × 26,988.60
  4. Step 4: Simplify right side
    69,663.19x = 2,819,278,815.02
  5. Step 5: Solve for x
    x = 2,819,278,815.02/69,663.19
  6. Step 6: Final answer
    x = 40,470.14

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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.