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Finding the Fourth Proportional to 13,808.56, 19,046.19 and 10,440.58

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Solution

The fourth proportional to 13,808.56, 19,046.19 and 10,440.58 is: 14,400.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.56 : 19,046.19 = 10,440.58 : x
  2. Step 2: Convert to fraction form
    13,808.56/19,046.19 = 10,440.58/x
  3. Step 3: Cross multiply
    13,808.56x = 19,046.19 × 10,440.58
  4. Step 4: Simplify right side
    13,808.56x = 198,853,270.39
  5. Step 5: Solve for x
    x = 198,853,270.39/13,808.56
  6. Step 6: Final answer
    x = 14,400.72

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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.