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Finding the Fourth Proportional to 2,700.60, 3,726.49 and 1,505.49

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Solution

The fourth proportional to 2,700.60, 3,726.49 and 1,505.49 is: 2,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.60 : 3,726.49 = 1,505.49 : x
  2. Step 2: Convert to fraction form
    2,700.60/3,726.49 = 1,505.49/x
  3. Step 3: Cross multiply
    2,700.60x = 3,726.49 × 1,505.49
  4. Step 4: Simplify right side
    2,700.60x = 5,610,193.43
  5. Step 5: Solve for x
    x = 5,610,193.43/2,700.60
  6. Step 6: Final answer
    x = 2,077.39

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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.