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Finding the Fourth Proportional to 54,527.40, 81,793.80 and 28,283.40

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Solution

The fourth proportional to 54,527.40, 81,793.80 and 28,283.40 is: 42,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,527.40 : 81,793.80 = 28,283.40 : x
  2. Step 2: Convert to fraction form
    54,527.40/81,793.80 = 28,283.40/x
  3. Step 3: Cross multiply
    54,527.40x = 81,793.80 × 28,283.40
  4. Step 4: Simplify right side
    54,527.40x = 2,313,406,762.92
  5. Step 5: Solve for x
    x = 2,313,406,762.92/54,527.40
  6. Step 6: Final answer
    x = 42,426.50

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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.