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Finding the Fourth Proportional to 54,326.70, 81,490.05 and 28,082.70

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Solution

The fourth proportional to 54,326.70, 81,490.05 and 28,082.70 is: 42,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,326.70 : 81,490.05 = 28,082.70 : x
  2. Step 2: Convert to fraction form
    54,326.70/81,490.05 = 28,082.70/x
  3. Step 3: Cross multiply
    54,326.70x = 81,490.05 × 28,082.70
  4. Step 4: Simplify right side
    54,326.70x = 2,288,460,627.14
  5. Step 5: Solve for x
    x = 2,288,460,627.14/54,326.70
  6. Step 6: Final answer
    x = 42,124.05

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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.