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Finding the Fourth Proportional to 11,775.62, 17,748.11 and 10,151.77

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Solution

The fourth proportional to 11,775.62, 17,748.11 and 10,151.77 is: 15,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.62 : 17,748.11 = 10,151.77 : x
  2. Step 2: Convert to fraction form
    11,775.62/17,748.11 = 10,151.77/x
  3. Step 3: Cross multiply
    11,775.62x = 17,748.11 × 10,151.77
  4. Step 4: Simplify right side
    11,775.62x = 180,174,730.65
  5. Step 5: Solve for x
    x = 180,174,730.65/11,775.62
  6. Step 6: Final answer
    x = 15,300.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.