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Finding the Fourth Proportional to 60,400.80, 90,601.20 and 25,365.60

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Solution

The fourth proportional to 60,400.80, 90,601.20 and 25,365.60 is: 38,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,400.80 : 90,601.20 = 25,365.60 : x
  2. Step 2: Convert to fraction form
    60,400.80/90,601.20 = 25,365.60/x
  3. Step 3: Cross multiply
    60,400.80x = 90,601.20 × 25,365.60
  4. Step 4: Simplify right side
    60,400.80x = 2,298,153,798.72
  5. Step 5: Solve for x
    x = 2,298,153,798.72/60,400.80
  6. Step 6: Final answer
    x = 38,048.40

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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.