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Finding the Fourth Proportional to 17,555.64, 26,338.07 and 6,312.11

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Solution

The fourth proportional to 17,555.64, 26,338.07 and 6,312.11 is: 9,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,555.64 : 26,338.07 = 6,312.11 : x
  2. Step 2: Convert to fraction form
    17,555.64/26,338.07 = 6,312.11/x
  3. Step 3: Cross multiply
    17,555.64x = 26,338.07 × 6,312.11
  4. Step 4: Simplify right side
    17,555.64x = 166,248,631.78
  5. Step 5: Solve for x
    x = 166,248,631.78/17,555.64
  6. Step 6: Final answer
    x = 9,469.81

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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.