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Finding the Fourth Proportional to 17,417.80, 26,126.70 and 10,840.60

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Solution

The fourth proportional to 17,417.80, 26,126.70 and 10,840.60 is: 16,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,417.80 : 26,126.70 = 10,840.60 : x
  2. Step 2: Convert to fraction form
    17,417.80/26,126.70 = 10,840.60/x
  3. Step 3: Cross multiply
    17,417.80x = 26,126.70 × 10,840.60
  4. Step 4: Simplify right side
    17,417.80x = 283,229,104.02
  5. Step 5: Solve for x
    x = 283,229,104.02/17,417.80
  6. Step 6: Final answer
    x = 16,260.90

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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.