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Finding the Fourth Proportional to 3,507.66, 5,261.49 and 1,042.47

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Solution

The fourth proportional to 3,507.66, 5,261.49 and 1,042.47 is: 1,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.66 : 5,261.49 = 1,042.47 : x
  2. Step 2: Convert to fraction form
    3,507.66/5,261.49 = 1,042.47/x
  3. Step 3: Cross multiply
    3,507.66x = 5,261.49 × 1,042.47
  4. Step 4: Simplify right side
    3,507.66x = 5,484,945.48
  5. Step 5: Solve for x
    x = 5,484,945.48/3,507.66
  6. Step 6: Final answer
    x = 1,563.71

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.