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Finding the Fourth Proportional to 43,195.76, 64,795.16 and 15,110.16

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Solution

The fourth proportional to 43,195.76, 64,795.16 and 15,110.16 is: 22,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,195.76 : 64,795.16 = 15,110.16 : x
  2. Step 2: Convert to fraction form
    43,195.76/64,795.16 = 15,110.16/x
  3. Step 3: Cross multiply
    43,195.76x = 64,795.16 × 15,110.16
  4. Step 4: Simplify right side
    43,195.76x = 979,065,234.83
  5. Step 5: Solve for x
    x = 979,065,234.83/43,195.76
  6. Step 6: Final answer
    x = 22,665.77

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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.