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Finding the Fourth Proportional to 45,279.76, 67,910.65 and 22,784.44

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Solution

The fourth proportional to 45,279.76, 67,910.65 and 22,784.44 is: 34,172.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,279.76 : 67,910.65 = 22,784.44 : x
  2. Step 2: Convert to fraction form
    45,279.76/67,910.65 = 22,784.44/x
  3. Step 3: Cross multiply
    45,279.76x = 67,910.65 × 22,784.44
  4. Step 4: Simplify right side
    45,279.76x = 1,547,306,130.29
  5. Step 5: Solve for x
    x = 1,547,306,130.29/45,279.76
  6. Step 6: Final answer
    x = 34,172.14

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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.