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Finding the Fourth Proportional to 17,039.61, 25,547.85 and 8,712.81

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Solution

The fourth proportional to 17,039.61, 25,547.85 and 8,712.81 is: 13,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,039.61 : 25,547.85 = 8,712.81 : x
  2. Step 2: Convert to fraction form
    17,039.61/25,547.85 = 8,712.81/x
  3. Step 3: Cross multiply
    17,039.61x = 25,547.85 × 8,712.81
  4. Step 4: Simplify right side
    17,039.61x = 222,593,562.96
  5. Step 5: Solve for x
    x = 222,593,562.96/17,039.61
  6. Step 6: Final answer
    x = 13,063.30

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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.