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Finding the Fourth Proportional to 17,699.52, 26,565.72 and 8,940.60

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Solution

The fourth proportional to 17,699.52, 26,565.72 and 8,940.60 is: 13,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,699.52 : 26,565.72 = 8,940.60 : x
  2. Step 2: Convert to fraction form
    17,699.52/26,565.72 = 8,940.60/x
  3. Step 3: Cross multiply
    17,699.52x = 26,565.72 × 8,940.60
  4. Step 4: Simplify right side
    17,699.52x = 237,513,476.23
  5. Step 5: Solve for x
    x = 237,513,476.23/17,699.52
  6. Step 6: Final answer
    x = 13,419.20

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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.