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Finding the Fourth Proportional to 15,182.96, 20,944.52 and 12,353.50

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Solution

The fourth proportional to 15,182.96, 20,944.52 and 12,353.50 is: 17,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.96 : 20,944.52 = 12,353.50 : x
  2. Step 2: Convert to fraction form
    15,182.96/20,944.52 = 12,353.50/x
  3. Step 3: Cross multiply
    15,182.96x = 20,944.52 × 12,353.50
  4. Step 4: Simplify right side
    15,182.96x = 258,738,127.82
  5. Step 5: Solve for x
    x = 258,738,127.82/15,182.96
  6. Step 6: Final answer
    x = 17,041.35

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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.