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Finding the Fourth Proportional to 17,718.32, 26,577.48 and 7,338.80

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Solution

The fourth proportional to 17,718.32, 26,577.48 and 7,338.80 is: 11,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.32 : 26,577.48 = 7,338.80 : x
  2. Step 2: Convert to fraction form
    17,718.32/26,577.48 = 7,338.80/x
  3. Step 3: Cross multiply
    17,718.32x = 26,577.48 × 7,338.80
  4. Step 4: Simplify right side
    17,718.32x = 195,046,810.22
  5. Step 5: Solve for x
    x = 195,046,810.22/17,718.32
  6. Step 6: Final answer
    x = 11,008.20

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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.