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Finding the Fourth Proportional to 4,995.74, 7,491.42 and 2,655.18

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Solution

The fourth proportional to 4,995.74, 7,491.42 and 2,655.18 is: 3,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.74 : 7,491.42 = 2,655.18 : x
  2. Step 2: Convert to fraction form
    4,995.74/7,491.42 = 2,655.18/x
  3. Step 3: Cross multiply
    4,995.74x = 7,491.42 × 2,655.18
  4. Step 4: Simplify right side
    4,995.74x = 19,891,068.56
  5. Step 5: Solve for x
    x = 19,891,068.56/4,995.74
  6. Step 6: Final answer
    x = 3,981.60

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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.