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Finding the Fourth Proportional to 18,471.53, 25,490.71 and 10,088.03

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Solution

The fourth proportional to 18,471.53, 25,490.71 and 10,088.03 is: 13,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.53 : 25,490.71 = 10,088.03 : x
  2. Step 2: Convert to fraction form
    18,471.53/25,490.71 = 10,088.03/x
  3. Step 3: Cross multiply
    18,471.53x = 25,490.71 × 10,088.03
  4. Step 4: Simplify right side
    18,471.53x = 257,151,047.20
  5. Step 5: Solve for x
    x = 257,151,047.20/18,471.53
  6. Step 6: Final answer
    x = 13,921.48

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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.