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Finding the Fourth Proportional to 4,689.99, 6,472.98 and 2,700.18

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Solution

The fourth proportional to 4,689.99, 6,472.98 and 2,700.18 is: 3,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.99 : 6,472.98 = 2,700.18 : x
  2. Step 2: Convert to fraction form
    4,689.99/6,472.98 = 2,700.18/x
  3. Step 3: Cross multiply
    4,689.99x = 6,472.98 × 2,700.18
  4. Step 4: Simplify right side
    4,689.99x = 17,478,211.14
  5. Step 5: Solve for x
    x = 17,478,211.14/4,689.99
  6. Step 6: Final answer
    x = 3,726.71

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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.