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Finding the Fourth Proportional to 5,395.68, 7,431.12 and 5,044.32

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Solution

The fourth proportional to 5,395.68, 7,431.12 and 5,044.32 is: 6,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.68 : 7,431.12 = 5,044.32 : x
  2. Step 2: Convert to fraction form
    5,395.68/7,431.12 = 5,044.32/x
  3. Step 3: Cross multiply
    5,395.68x = 7,431.12 × 5,044.32
  4. Step 4: Simplify right side
    5,395.68x = 37,484,947.24
  5. Step 5: Solve for x
    x = 37,484,947.24/5,395.68
  6. Step 6: Final answer
    x = 6,947.21

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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.