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Finding the Fourth Proportional to 17,693.10, 26,547.84 and 8,917.76

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Solution

The fourth proportional to 17,693.10, 26,547.84 and 8,917.76 is: 13,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,693.10 : 26,547.84 = 8,917.76 : x
  2. Step 2: Convert to fraction form
    17,693.10/26,547.84 = 8,917.76/x
  3. Step 3: Cross multiply
    17,693.10x = 26,547.84 × 8,917.76
  4. Step 4: Simplify right side
    17,693.10x = 236,747,265.64
  5. Step 5: Solve for x
    x = 236,747,265.64/17,693.10
  6. Step 6: Final answer
    x = 13,380.77

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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.