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Finding the Fourth Proportional to 18,802.28, 25,947.15 and 11,248.93

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Solution

The fourth proportional to 18,802.28, 25,947.15 and 11,248.93 is: 15,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.28 : 25,947.15 = 11,248.93 : x
  2. Step 2: Convert to fraction form
    18,802.28/25,947.15 = 11,248.93/x
  3. Step 3: Cross multiply
    18,802.28x = 25,947.15 × 11,248.93
  4. Step 4: Simplify right side
    18,802.28x = 291,877,674.05
  5. Step 5: Solve for x
    x = 291,877,674.05/18,802.28
  6. Step 6: Final answer
    x = 15,523.53

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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.