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Finding the Fourth Proportional to 3,495.12, 5,242.68 and 898.16

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Solution

The fourth proportional to 3,495.12, 5,242.68 and 898.16 is: 1,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.12 : 5,242.68 = 898.16 : x
  2. Step 2: Convert to fraction form
    3,495.12/5,242.68 = 898.16/x
  3. Step 3: Cross multiply
    3,495.12x = 5,242.68 × 898.16
  4. Step 4: Simplify right side
    3,495.12x = 4,708,765.47
  5. Step 5: Solve for x
    x = 4,708,765.47/3,495.12
  6. Step 6: Final answer
    x = 1,347.24

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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.