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Finding the Fourth Proportional to 12,461.75, 18,695.81 and 10,244.22

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Solution

The fourth proportional to 12,461.75, 18,695.81 and 10,244.22 is: 15,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.75 : 18,695.81 = 10,244.22 : x
  2. Step 2: Convert to fraction form
    12,461.75/18,695.81 = 10,244.22/x
  3. Step 3: Cross multiply
    12,461.75x = 18,695.81 × 10,244.22
  4. Step 4: Simplify right side
    12,461.75x = 191,524,051.38
  5. Step 5: Solve for x
    x = 191,524,051.38/12,461.75
  6. Step 6: Final answer
    x = 15,368.95

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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.