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Finding the Fourth Proportional to 7,889.58, 10,887.54 and 4,352.82

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Solution

The fourth proportional to 7,889.58, 10,887.54 and 4,352.82 is: 6,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.58 : 10,887.54 = 4,352.82 : x
  2. Step 2: Convert to fraction form
    7,889.58/10,887.54 = 4,352.82/x
  3. Step 3: Cross multiply
    7,889.58x = 10,887.54 × 4,352.82
  4. Step 4: Simplify right side
    7,889.58x = 47,391,501.86
  5. Step 5: Solve for x
    x = 47,391,501.86/7,889.58
  6. Step 6: Final answer
    x = 6,006.85

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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.