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Finding the Fourth Proportional to 15,953.96, 22,016.94 and 9,239.60

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Solution

The fourth proportional to 15,953.96, 22,016.94 and 9,239.60 is: 12,750.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,953.96 : 22,016.94 = 9,239.60 : x
  2. Step 2: Convert to fraction form
    15,953.96/22,016.94 = 9,239.60/x
  3. Step 3: Cross multiply
    15,953.96x = 22,016.94 × 9,239.60
  4. Step 4: Simplify right side
    15,953.96x = 203,427,718.82
  5. Step 5: Solve for x
    x = 203,427,718.82/15,953.96
  6. Step 6: Final answer
    x = 12,750.92

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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.