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Finding the Fourth Proportional to 60,471.78, 90,717.06 and 30,873.60

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Solution

The fourth proportional to 60,471.78, 90,717.06 and 30,873.60 is: 46,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,471.78 : 90,717.06 = 30,873.60 : x
  2. Step 2: Convert to fraction form
    60,471.78/90,717.06 = 30,873.60/x
  3. Step 3: Cross multiply
    60,471.78x = 90,717.06 × 30,873.60
  4. Step 4: Simplify right side
    60,471.78x = 2,800,762,223.62
  5. Step 5: Solve for x
    x = 2,800,762,223.62/60,471.78
  6. Step 6: Final answer
    x = 46,315.19

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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.