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Finding the Fourth Proportional to 25,990.56, 35,869.10 and 14,659.48

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Solution

The fourth proportional to 25,990.56, 35,869.10 and 14,659.48 is: 20,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.56 : 35,869.10 = 14,659.48 : x
  2. Step 2: Convert to fraction form
    25,990.56/35,869.10 = 14,659.48/x
  3. Step 3: Cross multiply
    25,990.56x = 35,869.10 × 14,659.48
  4. Step 4: Simplify right side
    25,990.56x = 525,822,354.07
  5. Step 5: Solve for x
    x = 525,822,354.07/25,990.56
  6. Step 6: Final answer
    x = 20,231.28

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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.