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Finding the Fourth Proportional to 6,603.12, 9,102.78 and 5,028.48

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Solution

The fourth proportional to 6,603.12, 9,102.78 and 5,028.48 is: 6,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.12 : 9,102.78 = 5,028.48 : x
  2. Step 2: Convert to fraction form
    6,603.12/9,102.78 = 5,028.48/x
  3. Step 3: Cross multiply
    6,603.12x = 9,102.78 × 5,028.48
  4. Step 4: Simplify right side
    6,603.12x = 45,773,147.17
  5. Step 5: Solve for x
    x = 45,773,147.17/6,603.12
  6. Step 6: Final answer
    x = 6,932.05

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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.