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Finding the Fourth Proportional to 9,048.80, 12,493.17 and 7,374.21

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Solution

The fourth proportional to 9,048.80, 12,493.17 and 7,374.21 is: 10,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,048.80 : 12,493.17 = 7,374.21 : x
  2. Step 2: Convert to fraction form
    9,048.80/12,493.17 = 7,374.21/x
  3. Step 3: Cross multiply
    9,048.80x = 12,493.17 × 7,374.21
  4. Step 4: Simplify right side
    9,048.80x = 92,127,259.15
  5. Step 5: Solve for x
    x = 92,127,259.15/9,048.80
  6. Step 6: Final answer
    x = 10,181.16

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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.