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Finding the Fourth Proportional to 9,359.53, 12,905.65 and 6,377.11

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Solution

The fourth proportional to 9,359.53, 12,905.65 and 6,377.11 is: 8,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359.53 : 12,905.65 = 6,377.11 : x
  2. Step 2: Convert to fraction form
    9,359.53/12,905.65 = 6,377.11/x
  3. Step 3: Cross multiply
    9,359.53x = 12,905.65 × 6,377.11
  4. Step 4: Simplify right side
    9,359.53x = 82,300,701.09
  5. Step 5: Solve for x
    x = 82,300,701.09/9,359.53
  6. Step 6: Final answer
    x = 8,793.26

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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.