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Finding the Fourth Proportional to 8,836.74, 12,180.51 and 7,349.58

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Solution

The fourth proportional to 8,836.74, 12,180.51 and 7,349.58 is: 10,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.74 : 12,180.51 = 7,349.58 : x
  2. Step 2: Convert to fraction form
    8,836.74/12,180.51 = 7,349.58/x
  3. Step 3: Cross multiply
    8,836.74x = 12,180.51 × 7,349.58
  4. Step 4: Simplify right side
    8,836.74x = 89,521,632.69
  5. Step 5: Solve for x
    x = 89,521,632.69/8,836.74
  6. Step 6: Final answer
    x = 10,130.62

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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.