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Finding the Fourth Proportional to 22,751.55, 34,127.83 and 7,758.65

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Solution

The fourth proportional to 22,751.55, 34,127.83 and 7,758.65 is: 11,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,751.55 : 34,127.83 = 7,758.65 : x
  2. Step 2: Convert to fraction form
    22,751.55/34,127.83 = 7,758.65/x
  3. Step 3: Cross multiply
    22,751.55x = 34,127.83 × 7,758.65
  4. Step 4: Simplify right side
    22,751.55x = 264,785,888.23
  5. Step 5: Solve for x
    x = 264,785,888.23/22,751.55
  6. Step 6: Final answer
    x = 11,638.15

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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.