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Finding the Fourth Proportional to 10,626.70, 14,664.88 and 5,911.90

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Solution

The fourth proportional to 10,626.70, 14,664.88 and 5,911.90 is: 8,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,626.70 : 14,664.88 = 5,911.90 : x
  2. Step 2: Convert to fraction form
    10,626.70/14,664.88 = 5,911.90/x
  3. Step 3: Cross multiply
    10,626.70x = 14,664.88 × 5,911.90
  4. Step 4: Simplify right side
    10,626.70x = 86,697,304.07
  5. Step 5: Solve for x
    x = 86,697,304.07/10,626.70
  6. Step 6: Final answer
    x = 8,158.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.