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Finding the Fourth Proportional to 17,874.59, 26,784.53 and 9,555.78

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Solution

The fourth proportional to 17,874.59, 26,784.53 and 9,555.78 is: 14,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,874.59 : 26,784.53 = 9,555.78 : x
  2. Step 2: Convert to fraction form
    17,874.59/26,784.53 = 9,555.78/x
  3. Step 3: Cross multiply
    17,874.59x = 26,784.53 × 9,555.78
  4. Step 4: Simplify right side
    17,874.59x = 255,947,028.30
  5. Step 5: Solve for x
    x = 255,947,028.30/17,874.59
  6. Step 6: Final answer
    x = 14,319.05

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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.