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Finding the Fourth Proportional to 2,681.68, 3,700.89 and 1,502.75

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Solution

The fourth proportional to 2,681.68, 3,700.89 and 1,502.75 is: 2,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.68 : 3,700.89 = 1,502.75 : x
  2. Step 2: Convert to fraction form
    2,681.68/3,700.89 = 1,502.75/x
  3. Step 3: Cross multiply
    2,681.68x = 3,700.89 × 1,502.75
  4. Step 4: Simplify right side
    2,681.68x = 5,561,512.45
  5. Step 5: Solve for x
    x = 5,561,512.45/2,681.68
  6. Step 6: Final answer
    x = 2,073.90

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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.