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Finding the Fourth Proportional to 17,661.83, 26,492.74 and 5,815.13

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Solution

The fourth proportional to 17,661.83, 26,492.74 and 5,815.13 is: 8,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.83 : 26,492.74 = 5,815.13 : x
  2. Step 2: Convert to fraction form
    17,661.83/26,492.74 = 5,815.13/x
  3. Step 3: Cross multiply
    17,661.83x = 26,492.74 × 5,815.13
  4. Step 4: Simplify right side
    17,661.83x = 154,058,580.15
  5. Step 5: Solve for x
    x = 154,058,580.15/17,661.83
  6. Step 6: Final answer
    x = 8,722.69

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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.