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Finding the Fourth Proportional to 8,706.70, 13,064.10 and 4,551.40

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Solution

The fourth proportional to 8,706.70, 13,064.10 and 4,551.40 is: 6,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.70 : 13,064.10 = 4,551.40 : x
  2. Step 2: Convert to fraction form
    8,706.70/13,064.10 = 4,551.40/x
  3. Step 3: Cross multiply
    8,706.70x = 13,064.10 × 4,551.40
  4. Step 4: Simplify right side
    8,706.70x = 59,459,944.74
  5. Step 5: Solve for x
    x = 59,459,944.74/8,706.70
  6. Step 6: Final answer
    x = 6,829.22

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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.