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Finding the Fourth Proportional to 12,376.31, 17,079.35 and 7,343.02

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Solution

The fourth proportional to 12,376.31, 17,079.35 and 7,343.02 is: 10,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.31 : 17,079.35 = 7,343.02 : x
  2. Step 2: Convert to fraction form
    12,376.31/17,079.35 = 7,343.02/x
  3. Step 3: Cross multiply
    12,376.31x = 17,079.35 × 7,343.02
  4. Step 4: Simplify right side
    12,376.31x = 125,413,993.27
  5. Step 5: Solve for x
    x = 125,413,993.27/12,376.31
  6. Step 6: Final answer
    x = 10,133.40

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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.