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Finding the Fourth Proportional to 6,295.96, 8,687.55 and 3,642.40

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Solution

The fourth proportional to 6,295.96, 8,687.55 and 3,642.40 is: 5,026.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.96 : 8,687.55 = 3,642.40 : x
  2. Step 2: Convert to fraction form
    6,295.96/8,687.55 = 3,642.40/x
  3. Step 3: Cross multiply
    6,295.96x = 8,687.55 × 3,642.40
  4. Step 4: Simplify right side
    6,295.96x = 31,643,532.12
  5. Step 5: Solve for x
    x = 31,643,532.12/6,295.96
  6. Step 6: Final answer
    x = 5,026.01

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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.