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Finding the Fourth Proportional to 19,751.60, 27,253.40 and 11,253.53

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Solution

The fourth proportional to 19,751.60, 27,253.40 and 11,253.53 is: 15,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.60 : 27,253.40 = 11,253.53 : x
  2. Step 2: Convert to fraction form
    19,751.60/27,253.40 = 11,253.53/x
  3. Step 3: Cross multiply
    19,751.60x = 27,253.40 × 11,253.53
  4. Step 4: Simplify right side
    19,751.60x = 306,696,761.97
  5. Step 5: Solve for x
    x = 306,696,761.97/19,751.60
  6. Step 6: Final answer
    x = 15,527.70

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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.