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Finding the Fourth Proportional to 68,075.52, 102,113.36 and 33,020.32

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Solution

The fourth proportional to 68,075.52, 102,113.36 and 33,020.32 is: 49,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.52 : 102,113.36 = 33,020.32 : x
  2. Step 2: Convert to fraction form
    68,075.52/102,113.36 = 33,020.32/x
  3. Step 3: Cross multiply
    68,075.52x = 102,113.36 × 33,020.32
  4. Step 4: Simplify right side
    68,075.52x = 3,371,815,823.48
  5. Step 5: Solve for x
    x = 3,371,815,823.48/68,075.52
  6. Step 6: Final answer
    x = 49,530.52

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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.