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Finding the Fourth Proportional to 17,657.59, 26,486.20 and 5,345.59

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Solution

The fourth proportional to 17,657.59, 26,486.20 and 5,345.59 is: 8,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,657.59 : 26,486.20 = 5,345.59 : x
  2. Step 2: Convert to fraction form
    17,657.59/26,486.20 = 5,345.59/x
  3. Step 3: Cross multiply
    17,657.59x = 26,486.20 × 5,345.59
  4. Step 4: Simplify right side
    17,657.59x = 141,584,365.86
  5. Step 5: Solve for x
    x = 141,584,365.86/17,657.59
  6. Step 6: Final answer
    x = 8,018.33

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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.