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Finding the Fourth Proportional to 7,087.20, 9,781.26 and 4,848.26

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Solution

The fourth proportional to 7,087.20, 9,781.26 and 4,848.26 is: 6,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.20 : 9,781.26 = 4,848.26 : x
  2. Step 2: Convert to fraction form
    7,087.20/9,781.26 = 4,848.26/x
  3. Step 3: Cross multiply
    7,087.20x = 9,781.26 × 4,848.26
  4. Step 4: Simplify right side
    7,087.20x = 47,422,024.52
  5. Step 5: Solve for x
    x = 47,422,024.52/7,087.20
  6. Step 6: Final answer
    x = 6,691.22

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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.