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Finding the Fourth Proportional to 3,166.72, 4,750.80 and 975.67

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Solution

The fourth proportional to 3,166.72, 4,750.80 and 975.67 is: 1,463.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.72 : 4,750.80 = 975.67 : x
  2. Step 2: Convert to fraction form
    3,166.72/4,750.80 = 975.67/x
  3. Step 3: Cross multiply
    3,166.72x = 4,750.80 × 975.67
  4. Step 4: Simplify right side
    3,166.72x = 4,635,213.04
  5. Step 5: Solve for x
    x = 4,635,213.04/3,166.72
  6. Step 6: Final answer
    x = 1,463.73

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1.5x scale

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.