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Finding the Fourth Proportional to 6,748.47, 9,312.47 and 3,764.50

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Solution

The fourth proportional to 6,748.47, 9,312.47 and 3,764.50 is: 5,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748.47 : 9,312.47 = 3,764.50 : x
  2. Step 2: Convert to fraction form
    6,748.47/9,312.47 = 3,764.50/x
  3. Step 3: Cross multiply
    6,748.47x = 9,312.47 × 3,764.50
  4. Step 4: Simplify right side
    6,748.47x = 35,056,727.93
  5. Step 5: Solve for x
    x = 35,056,727.93/6,748.47
  6. Step 6: Final answer
    x = 5,194.77

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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.