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Finding the Fourth Proportional to 7,344.80, 10,124.16 and 5,770.16

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Solution

The fourth proportional to 7,344.80, 10,124.16 and 5,770.16 is: 7,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.80 : 10,124.16 = 5,770.16 : x
  2. Step 2: Convert to fraction form
    7,344.80/10,124.16 = 5,770.16/x
  3. Step 3: Cross multiply
    7,344.80x = 10,124.16 × 5,770.16
  4. Step 4: Simplify right side
    7,344.80x = 58,418,023.07
  5. Step 5: Solve for x
    x = 58,418,023.07/7,344.80
  6. Step 6: Final answer
    x = 7,953.66

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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.