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Finding the Fourth Proportional to 17,617.80, 26,426.70 and 11,051.40

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Solution

The fourth proportional to 17,617.80, 26,426.70 and 11,051.40 is: 16,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,617.80 : 26,426.70 = 11,051.40 : x
  2. Step 2: Convert to fraction form
    17,617.80/26,426.70 = 11,051.40/x
  3. Step 3: Cross multiply
    17,617.80x = 26,426.70 × 11,051.40
  4. Step 4: Simplify right side
    17,617.80x = 292,052,032.38
  5. Step 5: Solve for x
    x = 292,052,032.38/17,617.80
  6. Step 6: Final answer
    x = 16,577.10

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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.