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Finding the Fourth Proportional to 17,616.64, 26,373.70 and 13,709.20

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Solution

The fourth proportional to 17,616.64, 26,373.70 and 13,709.20 is: 20,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,616.64 : 26,373.70 = 13,709.20 : x
  2. Step 2: Convert to fraction form
    17,616.64/26,373.70 = 13,709.20/x
  3. Step 3: Cross multiply
    17,616.64x = 26,373.70 × 13,709.20
  4. Step 4: Simplify right side
    17,616.64x = 361,562,328.04
  5. Step 5: Solve for x
    x = 361,562,328.04/17,616.64
  6. Step 6: Final answer
    x = 20,523.91

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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.