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Finding the Fourth Proportional to 4,881.52, 7,322.36 and 1,761.76

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Solution

The fourth proportional to 4,881.52, 7,322.36 and 1,761.76 is: 2,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.52 : 7,322.36 = 1,761.76 : x
  2. Step 2: Convert to fraction form
    4,881.52/7,322.36 = 1,761.76/x
  3. Step 3: Cross multiply
    4,881.52x = 7,322.36 × 1,761.76
  4. Step 4: Simplify right side
    4,881.52x = 12,900,240.95
  5. Step 5: Solve for x
    x = 12,900,240.95/4,881.52
  6. Step 6: Final answer
    x = 2,642.67

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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.