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Finding the Fourth Proportional to 6,693.48, 9,239.80 and 4,040.32

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Solution

The fourth proportional to 6,693.48, 9,239.80 and 4,040.32 is: 5,577.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.48 : 9,239.80 = 4,040.32 : x
  2. Step 2: Convert to fraction form
    6,693.48/9,239.80 = 4,040.32/x
  3. Step 3: Cross multiply
    6,693.48x = 9,239.80 × 4,040.32
  4. Step 4: Simplify right side
    6,693.48x = 37,331,748.74
  5. Step 5: Solve for x
    x = 37,331,748.74/6,693.48
  6. Step 6: Final answer
    x = 5,577.33

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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.