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Finding the Fourth Proportional to 7,184.88, 9,915.13 and 4,041.13

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Solution

The fourth proportional to 7,184.88, 9,915.13 and 4,041.13 is: 5,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.88 : 9,915.13 = 4,041.13 : x
  2. Step 2: Convert to fraction form
    7,184.88/9,915.13 = 4,041.13/x
  3. Step 3: Cross multiply
    7,184.88x = 9,915.13 × 4,041.13
  4. Step 4: Simplify right side
    7,184.88x = 40,068,329.30
  5. Step 5: Solve for x
    x = 40,068,329.30/7,184.88
  6. Step 6: Final answer
    x = 5,576.76

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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.