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Finding the Fourth Proportional to 9,373.52, 12,935.40 and 5,181.76

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Solution

The fourth proportional to 9,373.52, 12,935.40 and 5,181.76 is: 7,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,373.52 : 12,935.40 = 5,181.76 : x
  2. Step 2: Convert to fraction form
    9,373.52/12,935.40 = 5,181.76/x
  3. Step 3: Cross multiply
    9,373.52x = 12,935.40 × 5,181.76
  4. Step 4: Simplify right side
    9,373.52x = 67,028,138.30
  5. Step 5: Solve for x
    x = 67,028,138.30/9,373.52
  6. Step 6: Final answer
    x = 7,150.80

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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.