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Finding the Fourth Proportional to 60,485.40, 90,620.10 and 29,251.80

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Solution

The fourth proportional to 60,485.40, 90,620.10 and 29,251.80 is: 43,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,485.40 : 90,620.10 = 29,251.80 : x
  2. Step 2: Convert to fraction form
    60,485.40/90,620.10 = 29,251.80/x
  3. Step 3: Cross multiply
    60,485.40x = 90,620.10 × 29,251.80
  4. Step 4: Simplify right side
    60,485.40x = 2,650,801,041.18
  5. Step 5: Solve for x
    x = 2,650,801,041.18/60,485.40
  6. Step 6: Final answer
    x = 43,825.47

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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.