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Finding the Fourth Proportional to 15,174.65, 22,758.35 and 7,775.30

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Solution

The fourth proportional to 15,174.65, 22,758.35 and 7,775.30 is: 11,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.65 : 22,758.35 = 7,775.30 : x
  2. Step 2: Convert to fraction form
    15,174.65/22,758.35 = 7,775.30/x
  3. Step 3: Cross multiply
    15,174.65x = 22,758.35 × 7,775.30
  4. Step 4: Simplify right side
    15,174.65x = 176,953,016.77
  5. Step 5: Solve for x
    x = 176,953,016.77/15,174.65
  6. Step 6: Final answer
    x = 11,661.09

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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.