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Finding the Fourth Proportional to 29,308.71, 43,963.12 and 7,122.11

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Solution

The fourth proportional to 29,308.71, 43,963.12 and 7,122.11 is: 10,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,308.71 : 43,963.12 = 7,122.11 : x
  2. Step 2: Convert to fraction form
    29,308.71/43,963.12 = 7,122.11/x
  3. Step 3: Cross multiply
    29,308.71x = 43,963.12 × 7,122.11
  4. Step 4: Simplify right side
    29,308.71x = 313,110,176.58
  5. Step 5: Solve for x
    x = 313,110,176.58/29,308.71
  6. Step 6: Final answer
    x = 10,683.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.