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Finding the Fourth Proportional to 9,342.62, 12,888.41 and 5,563.63

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Solution

The fourth proportional to 9,342.62, 12,888.41 and 5,563.63 is: 7,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.62 : 12,888.41 = 5,563.63 : x
  2. Step 2: Convert to fraction form
    9,342.62/12,888.41 = 5,563.63/x
  3. Step 3: Cross multiply
    9,342.62x = 12,888.41 × 5,563.63
  4. Step 4: Simplify right side
    9,342.62x = 71,706,344.53
  5. Step 5: Solve for x
    x = 71,706,344.53/9,342.62
  6. Step 6: Final answer
    x = 7,675.19

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Double scale
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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.