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Finding the Fourth Proportional to 66,046.20, 99,082.10 and 28,606.20

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Solution

The fourth proportional to 66,046.20, 99,082.10 and 28,606.20 is: 42,914.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,046.20 : 99,082.10 = 28,606.20 : x
  2. Step 2: Convert to fraction form
    66,046.20/99,082.10 = 28,606.20/x
  3. Step 3: Cross multiply
    66,046.20x = 99,082.10 × 28,606.20
  4. Step 4: Simplify right side
    66,046.20x = 2,834,362,369.02
  5. Step 5: Solve for x
    x = 2,834,362,369.02/66,046.20
  6. Step 6: Final answer
    x = 42,914.84

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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.