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Finding the Fourth Proportional to 18,122.50, 25,009.10 and 10,574.02

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Solution

The fourth proportional to 18,122.50, 25,009.10 and 10,574.02 is: 14,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.50 : 25,009.10 = 10,574.02 : x
  2. Step 2: Convert to fraction form
    18,122.50/25,009.10 = 10,574.02/x
  3. Step 3: Cross multiply
    18,122.50x = 25,009.10 × 10,574.02
  4. Step 4: Simplify right side
    18,122.50x = 264,446,723.58
  5. Step 5: Solve for x
    x = 264,446,723.58/18,122.50
  6. Step 6: Final answer
    x = 14,592.18

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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.