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Finding the Fourth Proportional to 4,643.59, 6,404.42 and 4,082.87

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Solution

The fourth proportional to 4,643.59, 6,404.42 and 4,082.87 is: 5,631.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.59 : 6,404.42 = 4,082.87 : x
  2. Step 2: Convert to fraction form
    4,643.59/6,404.42 = 4,082.87/x
  3. Step 3: Cross multiply
    4,643.59x = 6,404.42 × 4,082.87
  4. Step 4: Simplify right side
    4,643.59x = 26,148,393.87
  5. Step 5: Solve for x
    x = 26,148,393.87/4,643.59
  6. Step 6: Final answer
    x = 5,631.07

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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.