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Finding the Fourth Proportional to 51,117.48, 76,591.17 and 17,819.19

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Solution

The fourth proportional to 51,117.48, 76,591.17 and 17,819.19 is: 26,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,117.48 : 76,591.17 = 17,819.19 : x
  2. Step 2: Convert to fraction form
    51,117.48/76,591.17 = 17,819.19/x
  3. Step 3: Cross multiply
    51,117.48x = 76,591.17 × 17,819.19
  4. Step 4: Simplify right side
    51,117.48x = 1,364,792,610.55
  5. Step 5: Solve for x
    x = 1,364,792,610.55/51,117.48
  6. Step 6: Final answer
    x = 26,699.14

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1.5x scale

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.