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Finding the Fourth Proportional to 57,873.04, 86,812.08 and 28,315.76

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Solution

The fourth proportional to 57,873.04, 86,812.08 and 28,315.76 is: 42,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,873.04 : 86,812.08 = 28,315.76 : x
  2. Step 2: Convert to fraction form
    57,873.04/86,812.08 = 28,315.76/x
  3. Step 3: Cross multiply
    57,873.04x = 86,812.08 × 28,315.76
  4. Step 4: Simplify right side
    57,873.04x = 2,458,150,022.38
  5. Step 5: Solve for x
    x = 2,458,150,022.38/57,873.04
  6. Step 6: Final answer
    x = 42,474.87

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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.