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Finding the Fourth Proportional to 5,364.70, 7,404.17 and 3,127.88

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Solution

The fourth proportional to 5,364.70, 7,404.17 and 3,127.88 is: 4,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.70 : 7,404.17 = 3,127.88 : x
  2. Step 2: Convert to fraction form
    5,364.70/7,404.17 = 3,127.88/x
  3. Step 3: Cross multiply
    5,364.70x = 7,404.17 × 3,127.88
  4. Step 4: Simplify right side
    5,364.70x = 23,159,358.13
  5. Step 5: Solve for x
    x = 23,159,358.13/5,364.70
  6. Step 6: Final answer
    x = 4,316.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.