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Finding the Fourth Proportional to 66,075.92, 99,155.66 and 34,542.89

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Solution

The fourth proportional to 66,075.92, 99,155.66 and 34,542.89 is: 51,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.92 : 99,155.66 = 34,542.89 : x
  2. Step 2: Convert to fraction form
    66,075.92/99,155.66 = 34,542.89/x
  3. Step 3: Cross multiply
    66,075.92x = 99,155.66 × 34,542.89
  4. Step 4: Simplify right side
    66,075.92x = 3,425,122,387.76
  5. Step 5: Solve for x
    x = 3,425,122,387.76/66,075.92
  6. Step 6: Final answer
    x = 51,836.17

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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.