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Finding the Fourth Proportional to 4,689.95, 6,471.92 and 2,700.09

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Solution

The fourth proportional to 4,689.95, 6,471.92 and 2,700.09 is: 3,726.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.95 : 6,471.92 = 2,700.09 : x
  2. Step 2: Convert to fraction form
    4,689.95/6,471.92 = 2,700.09/x
  3. Step 3: Cross multiply
    4,689.95x = 6,471.92 × 2,700.09
  4. Step 4: Simplify right side
    4,689.95x = 17,474,752.97
  5. Step 5: Solve for x
    x = 17,474,752.97/4,689.95
  6. Step 6: Final answer
    x = 3,726.00

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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.