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Finding the Fourth Proportional to 4,869.61, 6,720.11 and 4,497.55

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Solution

The fourth proportional to 4,869.61, 6,720.11 and 4,497.55 is: 6,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.61 : 6,720.11 = 4,497.55 : x
  2. Step 2: Convert to fraction form
    4,869.61/6,720.11 = 4,497.55/x
  3. Step 3: Cross multiply
    4,869.61x = 6,720.11 × 4,497.55
  4. Step 4: Simplify right side
    4,869.61x = 30,224,008.24
  5. Step 5: Solve for x
    x = 30,224,008.24/4,869.61
  6. Step 6: Final answer
    x = 6,206.66

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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.