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Finding the Fourth Proportional to 34,871.40, 52,331.40 and 22,421.70

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Solution

The fourth proportional to 34,871.40, 52,331.40 and 22,421.70 is: 33,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,871.40 : 52,331.40 = 22,421.70 : x
  2. Step 2: Convert to fraction form
    34,871.40/52,331.40 = 22,421.70/x
  3. Step 3: Cross multiply
    34,871.40x = 52,331.40 × 22,421.70
  4. Step 4: Simplify right side
    34,871.40x = 1,173,358,951.38
  5. Step 5: Solve for x
    x = 1,173,358,951.38/34,871.40
  6. Step 6: Final answer
    x = 33,648.17

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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.