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Finding the Fourth Proportional to 5,818.64, 8,728.56 and 3,353.40

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Solution

The fourth proportional to 5,818.64, 8,728.56 and 3,353.40 is: 5,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.64 : 8,728.56 = 3,353.40 : x
  2. Step 2: Convert to fraction form
    5,818.64/8,728.56 = 3,353.40/x
  3. Step 3: Cross multiply
    5,818.64x = 8,728.56 × 3,353.40
  4. Step 4: Simplify right side
    5,818.64x = 29,270,353.10
  5. Step 5: Solve for x
    x = 29,270,353.10/5,818.64
  6. Step 6: Final answer
    x = 5,030.45

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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.