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Finding the Fourth Proportional to 35,793.80, 53,700.42 and 12,422.06

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Solution

The fourth proportional to 35,793.80, 53,700.42 and 12,422.06 is: 18,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,793.80 : 53,700.42 = 12,422.06 : x
  2. Step 2: Convert to fraction form
    35,793.80/53,700.42 = 12,422.06/x
  3. Step 3: Cross multiply
    35,793.80x = 53,700.42 × 12,422.06
  4. Step 4: Simplify right side
    35,793.80x = 667,069,570.76
  5. Step 5: Solve for x
    x = 667,069,570.76/35,793.80
  6. Step 6: Final answer
    x = 18,636.46

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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.