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Finding the Fourth Proportional to 62,400.60, 93,600.90 and 20,847.60

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Solution

The fourth proportional to 62,400.60, 93,600.90 and 20,847.60 is: 31,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,400.60 : 93,600.90 = 20,847.60 : x
  2. Step 2: Convert to fraction form
    62,400.60/93,600.90 = 20,847.60/x
  3. Step 3: Cross multiply
    62,400.60x = 93,600.90 × 20,847.60
  4. Step 4: Simplify right side
    62,400.60x = 1,951,354,122.84
  5. Step 5: Solve for x
    x = 1,951,354,122.84/62,400.60
  6. Step 6: Final answer
    x = 31,271.40

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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.