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Finding the Fourth Proportional to 7,245.84, 10,864.88 and 3,442.48

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Solution

The fourth proportional to 7,245.84, 10,864.88 and 3,442.48 is: 5,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.84 : 10,864.88 = 3,442.48 : x
  2. Step 2: Convert to fraction form
    7,245.84/10,864.88 = 3,442.48/x
  3. Step 3: Cross multiply
    7,245.84x = 10,864.88 × 3,442.48
  4. Step 4: Simplify right side
    7,245.84x = 37,402,132.10
  5. Step 5: Solve for x
    x = 37,402,132.10/7,245.84
  6. Step 6: Final answer
    x = 5,161.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.