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Finding the Fourth Proportional to 6,139.68, 8,473.68 and 4,048.08

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Solution

The fourth proportional to 6,139.68, 8,473.68 and 4,048.08 is: 5,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.68 : 8,473.68 = 4,048.08 : x
  2. Step 2: Convert to fraction form
    6,139.68/8,473.68 = 4,048.08/x
  3. Step 3: Cross multiply
    6,139.68x = 8,473.68 × 4,048.08
  4. Step 4: Simplify right side
    6,139.68x = 34,302,134.53
  5. Step 5: Solve for x
    x = 34,302,134.53/6,139.68
  6. Step 6: Final answer
    x = 5,586.96

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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.