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Finding the Fourth Proportional to 14,862.12, 20,510.12 and 8,401.24

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Solution

The fourth proportional to 14,862.12, 20,510.12 and 8,401.24 is: 11,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.12 : 20,510.12 = 8,401.24 : x
  2. Step 2: Convert to fraction form
    14,862.12/20,510.12 = 8,401.24/x
  3. Step 3: Cross multiply
    14,862.12x = 20,510.12 × 8,401.24
  4. Step 4: Simplify right side
    14,862.12x = 172,310,440.55
  5. Step 5: Solve for x
    x = 172,310,440.55/14,862.12
  6. Step 6: Final answer
    x = 11,593.93

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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.