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Finding the Fourth Proportional to 6,697.40, 9,242.48 and 3,713.28

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Solution

The fourth proportional to 6,697.40, 9,242.48 and 3,713.28 is: 5,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,697.40 : 9,242.48 = 3,713.28 : x
  2. Step 2: Convert to fraction form
    6,697.40/9,242.48 = 3,713.28/x
  3. Step 3: Cross multiply
    6,697.40x = 9,242.48 × 3,713.28
  4. Step 4: Simplify right side
    6,697.40x = 34,319,916.13
  5. Step 5: Solve for x
    x = 34,319,916.13/6,697.40
  6. Step 6: Final answer
    x = 5,124.36

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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.