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Finding the Fourth Proportional to 9,340.95, 12,884.90 and 7,348.35

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Solution

The fourth proportional to 9,340.95, 12,884.90 and 7,348.35 is: 10,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.95 : 12,884.90 = 7,348.35 : x
  2. Step 2: Convert to fraction form
    9,340.95/12,884.90 = 7,348.35/x
  3. Step 3: Cross multiply
    9,340.95x = 12,884.90 × 7,348.35
  4. Step 4: Simplify right side
    9,340.95x = 94,682,718.17
  5. Step 5: Solve for x
    x = 94,682,718.17/9,340.95
  6. Step 6: Final answer
    x = 10,136.30

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Similar ratio
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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.