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Finding the Fourth Proportional to 4,700.66, 6,486.80 and 2,711.30

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Solution

The fourth proportional to 4,700.66, 6,486.80 and 2,711.30 is: 3,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.66 : 6,486.80 = 2,711.30 : x
  2. Step 2: Convert to fraction form
    4,700.66/6,486.80 = 2,711.30/x
  3. Step 3: Cross multiply
    4,700.66x = 6,486.80 × 2,711.30
  4. Step 4: Simplify right side
    4,700.66x = 17,587,614.85
  5. Step 5: Solve for x
    x = 17,587,614.85/4,700.66
  6. Step 6: Final answer
    x = 3,741.52

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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.