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Finding the Fourth Proportional to 12,737.40, 17,579.07 and 12,329.16

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Solution

The fourth proportional to 12,737.40, 17,579.07 and 12,329.16 is: 17,015.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.40 : 17,579.07 = 12,329.16 : x
  2. Step 2: Convert to fraction form
    12,737.40/17,579.07 = 12,329.16/x
  3. Step 3: Cross multiply
    12,737.40x = 17,579.07 × 12,329.16
  4. Step 4: Simplify right side
    12,737.40x = 216,735,166.68
  5. Step 5: Solve for x
    x = 216,735,166.68/12,737.40
  6. Step 6: Final answer
    x = 17,015.65

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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.