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Finding the Fourth Proportional to 55,365.20, 83,047.80 and 22,090.40

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Solution

The fourth proportional to 55,365.20, 83,047.80 and 22,090.40 is: 33,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,365.20 : 83,047.80 = 22,090.40 : x
  2. Step 2: Convert to fraction form
    55,365.20/83,047.80 = 22,090.40/x
  3. Step 3: Cross multiply
    55,365.20x = 83,047.80 × 22,090.40
  4. Step 4: Simplify right side
    55,365.20x = 1,834,559,121.12
  5. Step 5: Solve for x
    x = 1,834,559,121.12/55,365.20
  6. Step 6: Final answer
    x = 33,135.60

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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.