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Finding the Fourth Proportional to 19,758.80, 27,266.13 and 10,804.56

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Solution

The fourth proportional to 19,758.80, 27,266.13 and 10,804.56 is: 14,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.80 : 27,266.13 = 10,804.56 : x
  2. Step 2: Convert to fraction form
    19,758.80/27,266.13 = 10,804.56/x
  3. Step 3: Cross multiply
    19,758.80x = 27,266.13 × 10,804.56
  4. Step 4: Simplify right side
    19,758.80x = 294,598,537.55
  5. Step 5: Solve for x
    x = 294,598,537.55/19,758.80
  6. Step 6: Final answer
    x = 14,909.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.