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Finding the Fourth Proportional to 42,610.40, 63,800.40 and 33,394.40

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Solution

The fourth proportional to 42,610.40, 63,800.40 and 33,394.40 is: 50,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,610.40 : 63,800.40 = 33,394.40 : x
  2. Step 2: Convert to fraction form
    42,610.40/63,800.40 = 33,394.40/x
  3. Step 3: Cross multiply
    42,610.40x = 63,800.40 × 33,394.40
  4. Step 4: Simplify right side
    42,610.40x = 2,130,576,077.76
  5. Step 5: Solve for x
    x = 2,130,576,077.76/42,610.40
  6. Step 6: Final answer
    x = 50,001.32

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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.