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Finding the Fourth Proportional to 9,617.16, 14,419.02 and 4,420.20

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Solution

The fourth proportional to 9,617.16, 14,419.02 and 4,420.20 is: 6,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,617.16 : 14,419.02 = 4,420.20 : x
  2. Step 2: Convert to fraction form
    9,617.16/14,419.02 = 4,420.20/x
  3. Step 3: Cross multiply
    9,617.16x = 14,419.02 × 4,420.20
  4. Step 4: Simplify right side
    9,617.16x = 63,734,952.20
  5. Step 5: Solve for x
    x = 63,734,952.20/9,617.16
  6. Step 6: Final answer
    x = 6,627.21

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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.