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Finding the Fourth Proportional to 18,446, 25,455.66 and 10,062.68

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Solution

The fourth proportional to 18,446, 25,455.66 and 10,062.68 is: 13,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446 : 25,455.66 = 10,062.68 : x
  2. Step 2: Convert to fraction form
    18,446/25,455.66 = 10,062.68/x
  3. Step 3: Cross multiply
    18,446x = 25,455.66 × 10,062.68
  4. Step 4: Simplify right side
    18,446x = 256,152,160.77
  5. Step 5: Solve for x
    x = 256,152,160.77/18,446
  6. Step 6: Final answer
    x = 13,886.60

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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.