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Finding the Fourth Proportional to 9,342.97, 12,948.94 and 9,168.01

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Solution

The fourth proportional to 9,342.97, 12,948.94 and 9,168.01 is: 12,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.97 : 12,948.94 = 9,168.01 : x
  2. Step 2: Convert to fraction form
    9,342.97/12,948.94 = 9,168.01/x
  3. Step 3: Cross multiply
    9,342.97x = 12,948.94 × 9,168.01
  4. Step 4: Simplify right side
    9,342.97x = 118,715,956.12
  5. Step 5: Solve for x
    x = 118,715,956.12/9,342.97
  6. Step 6: Final answer
    x = 12,706.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.