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Finding the Fourth Proportional to 4,900.81, 6,760.19 and 4,572.76

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Solution

The fourth proportional to 4,900.81, 6,760.19 and 4,572.76 is: 6,307.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.81 : 6,760.19 = 4,572.76 : x
  2. Step 2: Convert to fraction form
    4,900.81/6,760.19 = 4,572.76/x
  3. Step 3: Cross multiply
    4,900.81x = 6,760.19 × 4,572.76
  4. Step 4: Simplify right side
    4,900.81x = 30,912,726.42
  5. Step 5: Solve for x
    x = 30,912,726.42/4,900.81
  6. Step 6: Final answer
    x = 6,307.68

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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.