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Finding the Fourth Proportional to 61,649.20, 85,075.80 and 33,354.88

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Solution

The fourth proportional to 61,649.20, 85,075.80 and 33,354.88 is: 46,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,649.20 : 85,075.80 = 33,354.88 : x
  2. Step 2: Convert to fraction form
    61,649.20/85,075.80 = 33,354.88/x
  3. Step 3: Cross multiply
    61,649.20x = 85,075.80 × 33,354.88
  4. Step 4: Simplify right side
    61,649.20x = 2,837,693,099.90
  5. Step 5: Solve for x
    x = 2,837,693,099.90/61,649.20
  6. Step 6: Final answer
    x = 46,029.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.