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Finding the Fourth Proportional to 17,903.30, 26,854.95 and 10,127.30

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Solution

The fourth proportional to 17,903.30, 26,854.95 and 10,127.30 is: 15,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,903.30 : 26,854.95 = 10,127.30 : x
  2. Step 2: Convert to fraction form
    17,903.30/26,854.95 = 10,127.30/x
  3. Step 3: Cross multiply
    17,903.30x = 26,854.95 × 10,127.30
  4. Step 4: Simplify right side
    17,903.30x = 271,968,135.14
  5. Step 5: Solve for x
    x = 271,968,135.14/17,903.30
  6. Step 6: Final answer
    x = 15,190.95

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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.