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Finding the Fourth Proportional to 48,562.79, 67,021.79 and 28,426.19

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Solution

The fourth proportional to 48,562.79, 67,021.79 and 28,426.19 is: 39,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,562.79 : 67,021.79 = 28,426.19 : x
  2. Step 2: Convert to fraction form
    48,562.79/67,021.79 = 28,426.19/x
  3. Step 3: Cross multiply
    48,562.79x = 67,021.79 × 28,426.19
  4. Step 4: Simplify right side
    48,562.79x = 1,905,173,659.44
  5. Step 5: Solve for x
    x = 1,905,173,659.44/48,562.79
  6. Step 6: Final answer
    x = 39,231.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.