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Finding the Fourth Proportional to 18,252.77, 25,188.84 and 9,869.27

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Solution

The fourth proportional to 18,252.77, 25,188.84 and 9,869.27 is: 13,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.77 : 25,188.84 = 9,869.27 : x
  2. Step 2: Convert to fraction form
    18,252.77/25,188.84 = 9,869.27/x
  3. Step 3: Cross multiply
    18,252.77x = 25,188.84 × 9,869.27
  4. Step 4: Simplify right side
    18,252.77x = 248,595,337.00
  5. Step 5: Solve for x
    x = 248,595,337.00/18,252.77
  6. Step 6: Final answer
    x = 13,619.60

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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.