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Finding the Fourth Proportional to 25,990.56, 38,981.52 and 9,347.22

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Solution

The fourth proportional to 25,990.56, 38,981.52 and 9,347.22 is: 14,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.56 : 38,981.52 = 9,347.22 : x
  2. Step 2: Convert to fraction form
    25,990.56/38,981.52 = 9,347.22/x
  3. Step 3: Cross multiply
    25,990.56x = 38,981.52 × 9,347.22
  4. Step 4: Simplify right side
    25,990.56x = 364,368,843.37
  5. Step 5: Solve for x
    x = 364,368,843.37/25,990.56
  6. Step 6: Final answer
    x = 14,019.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.