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Finding the Fourth Proportional to 19,245.66, 28,868.46 and 10,462.11

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Solution

The fourth proportional to 19,245.66, 28,868.46 and 10,462.11 is: 15,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.66 : 28,868.46 = 10,462.11 : x
  2. Step 2: Convert to fraction form
    19,245.66/28,868.46 = 10,462.11/x
  3. Step 3: Cross multiply
    19,245.66x = 28,868.46 × 10,462.11
  4. Step 4: Simplify right side
    19,245.66x = 302,025,004.05
  5. Step 5: Solve for x
    x = 302,025,004.05/19,245.66
  6. Step 6: Final answer
    x = 15,693.15

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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.