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Finding the Fourth Proportional to 8,698.70, 13,052.10 and 4,543.40

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Solution

The fourth proportional to 8,698.70, 13,052.10 and 4,543.40 is: 6,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.70 : 13,052.10 = 4,543.40 : x
  2. Step 2: Convert to fraction form
    8,698.70/13,052.10 = 4,543.40/x
  3. Step 3: Cross multiply
    8,698.70x = 13,052.10 × 4,543.40
  4. Step 4: Simplify right side
    8,698.70x = 59,300,911.14
  5. Step 5: Solve for x
    x = 59,300,911.14/8,698.70
  6. Step 6: Final answer
    x = 6,817.22

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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.