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Finding the Fourth Proportional to 48,886.76, 73,330.42 and 17,721.20

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Solution

The fourth proportional to 48,886.76, 73,330.42 and 17,721.20 is: 26,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,886.76 : 73,330.42 = 17,721.20 : x
  2. Step 2: Convert to fraction form
    48,886.76/73,330.42 = 17,721.20/x
  3. Step 3: Cross multiply
    48,886.76x = 73,330.42 × 17,721.20
  4. Step 4: Simplify right side
    48,886.76x = 1,299,503,038.90
  5. Step 5: Solve for x
    x = 1,299,503,038.90/48,886.76
  6. Step 6: Final answer
    x = 26,581.90

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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.