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Finding the Fourth Proportional to 57,610.80, 79,539.60 and 47,025.60

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Solution

The fourth proportional to 57,610.80, 79,539.60 and 47,025.60 is: 64,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,610.80 : 79,539.60 = 47,025.60 : x
  2. Step 2: Convert to fraction form
    57,610.80/79,539.60 = 47,025.60/x
  3. Step 3: Cross multiply
    57,610.80x = 79,539.60 × 47,025.60
  4. Step 4: Simplify right side
    57,610.80x = 3,740,397,413.76
  5. Step 5: Solve for x
    x = 3,740,397,413.76/57,610.80
  6. Step 6: Final answer
    x = 64,925.28

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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.