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Finding the Fourth Proportional to 18,259.86, 25,200.99 and 10,304.04

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Solution

The fourth proportional to 18,259.86, 25,200.99 and 10,304.04 is: 14,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.86 : 25,200.99 = 10,304.04 : x
  2. Step 2: Convert to fraction form
    18,259.86/25,200.99 = 10,304.04/x
  3. Step 3: Cross multiply
    18,259.86x = 25,200.99 × 10,304.04
  4. Step 4: Simplify right side
    18,259.86x = 259,672,009.00
  5. Step 5: Solve for x
    x = 259,672,009.00/18,259.86
  6. Step 6: Final answer
    x = 14,220.92

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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.