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Finding the Fourth Proportional to 54,300.40, 81,450.60 and 36,585.70

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Solution

The fourth proportional to 54,300.40, 81,450.60 and 36,585.70 is: 54,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,300.40 : 81,450.60 = 36,585.70 : x
  2. Step 2: Convert to fraction form
    54,300.40/81,450.60 = 36,585.70/x
  3. Step 3: Cross multiply
    54,300.40x = 81,450.60 × 36,585.70
  4. Step 4: Simplify right side
    54,300.40x = 2,979,927,216.42
  5. Step 5: Solve for x
    x = 2,979,927,216.42/54,300.40
  6. Step 6: Final answer
    x = 54,878.55

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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.