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Finding the Fourth Proportional to 19,340.67, 26,690.17 and 10,957.17

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Solution

The fourth proportional to 19,340.67, 26,690.17 and 10,957.17 is: 15,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.67 : 26,690.17 = 10,957.17 : x
  2. Step 2: Convert to fraction form
    19,340.67/26,690.17 = 10,957.17/x
  3. Step 3: Cross multiply
    19,340.67x = 26,690.17 × 10,957.17
  4. Step 4: Simplify right side
    19,340.67x = 292,448,730.02
  5. Step 5: Solve for x
    x = 292,448,730.02/19,340.67
  6. Step 6: Final answer
    x = 15,120.92

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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.