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Finding the Fourth Proportional to 7,902.01, 11,850.59 and 4,202.20

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Solution

The fourth proportional to 7,902.01, 11,850.59 and 4,202.20 is: 6,302.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.01 : 11,850.59 = 4,202.20 : x
  2. Step 2: Convert to fraction form
    7,902.01/11,850.59 = 4,202.20/x
  3. Step 3: Cross multiply
    7,902.01x = 11,850.59 × 4,202.20
  4. Step 4: Simplify right side
    7,902.01x = 49,798,528.29
  5. Step 5: Solve for x
    x = 49,798,528.29/7,902.01
  6. Step 6: Final answer
    x = 6,302.01

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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.