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Finding the Fourth Proportional to 35,863.80, 53,730.90 and 21,996.60

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Solution

The fourth proportional to 35,863.80, 53,730.90 and 21,996.60 is: 32,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,863.80 : 53,730.90 = 21,996.60 : x
  2. Step 2: Convert to fraction form
    35,863.80/53,730.90 = 21,996.60/x
  3. Step 3: Cross multiply
    35,863.80x = 53,730.90 × 21,996.60
  4. Step 4: Simplify right side
    35,863.80x = 1,181,897,114.94
  5. Step 5: Solve for x
    x = 1,181,897,114.94/35,863.80
  6. Step 6: Final answer
    x = 32,955.16

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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.