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Finding the Fourth Proportional to 35,866.80, 53,775.90 and 18,322.20

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Solution

The fourth proportional to 35,866.80, 53,775.90 and 18,322.20 is: 27,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,866.80 : 53,775.90 = 18,322.20 : x
  2. Step 2: Convert to fraction form
    35,866.80/53,775.90 = 18,322.20/x
  3. Step 3: Cross multiply
    35,866.80x = 53,775.90 × 18,322.20
  4. Step 4: Simplify right side
    35,866.80x = 985,292,794.98
  5. Step 5: Solve for x
    x = 985,292,794.98/35,866.80
  6. Step 6: Final answer
    x = 27,470.89

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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.