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Finding the Fourth Proportional to 6,706.40, 9,263.86 and 5,153.90

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Solution

The fourth proportional to 6,706.40, 9,263.86 and 5,153.90 is: 7,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,706.40 : 9,263.86 = 5,153.90 : x
  2. Step 2: Convert to fraction form
    6,706.40/9,263.86 = 5,153.90/x
  3. Step 3: Cross multiply
    6,706.40x = 9,263.86 × 5,153.90
  4. Step 4: Simplify right side
    6,706.40x = 47,745,008.05
  5. Step 5: Solve for x
    x = 47,745,008.05/6,706.40
  6. Step 6: Final answer
    x = 7,119.32

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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.