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Finding the Fourth Proportional to 58,869.40, 88,304.10 and 19,427.80

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Solution

The fourth proportional to 58,869.40, 88,304.10 and 19,427.80 is: 29,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,869.40 : 88,304.10 = 19,427.80 : x
  2. Step 2: Convert to fraction form
    58,869.40/88,304.10 = 19,427.80/x
  3. Step 3: Cross multiply
    58,869.40x = 88,304.10 × 19,427.80
  4. Step 4: Simplify right side
    58,869.40x = 1,715,554,393.98
  5. Step 5: Solve for x
    x = 1,715,554,393.98/58,869.40
  6. Step 6: Final answer
    x = 29,141.70

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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.