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Finding the Fourth Proportional to 7,889.54, 10,887.41 and 4,352.67

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Solution

The fourth proportional to 7,889.54, 10,887.41 and 4,352.67 is: 6,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.54 : 10,887.41 = 4,352.67 : x
  2. Step 2: Convert to fraction form
    7,889.54/10,887.41 = 4,352.67/x
  3. Step 3: Cross multiply
    7,889.54x = 10,887.41 × 4,352.67
  4. Step 4: Simplify right side
    7,889.54x = 47,389,313.77
  5. Step 5: Solve for x
    x = 47,389,313.77/7,889.54
  6. Step 6: Final answer
    x = 6,006.60

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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.