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Finding the Fourth Proportional to 5,393.69, 7,437.17 and 4,395.87

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Solution

The fourth proportional to 5,393.69, 7,437.17 and 4,395.87 is: 6,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.69 : 7,437.17 = 4,395.87 : x
  2. Step 2: Convert to fraction form
    5,393.69/7,437.17 = 4,395.87/x
  3. Step 3: Cross multiply
    5,393.69x = 7,437.17 × 4,395.87
  4. Step 4: Simplify right side
    5,393.69x = 32,692,818.75
  5. Step 5: Solve for x
    x = 32,692,818.75/5,393.69
  6. Step 6: Final answer
    x = 6,061.31

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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.