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Finding the Fourth Proportional to 9,240.87, 13,863.71 and 3,000.87

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Solution

The fourth proportional to 9,240.87, 13,863.71 and 3,000.87 is: 4,502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.87 : 13,863.71 = 3,000.87 : x
  2. Step 2: Convert to fraction form
    9,240.87/13,863.71 = 3,000.87/x
  3. Step 3: Cross multiply
    9,240.87x = 13,863.71 × 3,000.87
  4. Step 4: Simplify right side
    9,240.87x = 41,603,176.42
  5. Step 5: Solve for x
    x = 41,603,176.42/9,240.87
  6. Step 6: Final answer
    x = 4,502.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.