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Finding the Fourth Proportional to 60,468.80, 90,703.20 and 35,520.80

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Solution

The fourth proportional to 60,468.80, 90,703.20 and 35,520.80 is: 53,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,468.80 : 90,703.20 = 35,520.80 : x
  2. Step 2: Convert to fraction form
    60,468.80/90,703.20 = 35,520.80/x
  3. Step 3: Cross multiply
    60,468.80x = 90,703.20 × 35,520.80
  4. Step 4: Simplify right side
    60,468.80x = 3,221,850,226.56
  5. Step 5: Solve for x
    x = 3,221,850,226.56/60,468.80
  6. Step 6: Final answer
    x = 53,281.20

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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.