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Finding the Fourth Proportional to 8,433.75, 12,648.21 and 2,510.40

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Solution

The fourth proportional to 8,433.75, 12,648.21 and 2,510.40 is: 3,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.75 : 12,648.21 = 2,510.40 : x
  2. Step 2: Convert to fraction form
    8,433.75/12,648.21 = 2,510.40/x
  3. Step 3: Cross multiply
    8,433.75x = 12,648.21 × 2,510.40
  4. Step 4: Simplify right side
    8,433.75x = 31,752,066.38
  5. Step 5: Solve for x
    x = 31,752,066.38/8,433.75
  6. Step 6: Final answer
    x = 3,764.88

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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.