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Finding the Fourth Proportional to 7,193.31, 9,927.35 and 4,006.90

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Solution

The fourth proportional to 7,193.31, 9,927.35 and 4,006.90 is: 5,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.31 : 9,927.35 = 4,006.90 : x
  2. Step 2: Convert to fraction form
    7,193.31/9,927.35 = 4,006.90/x
  3. Step 3: Cross multiply
    7,193.31x = 9,927.35 × 4,006.90
  4. Step 4: Simplify right side
    7,193.31x = 39,777,898.72
  5. Step 5: Solve for x
    x = 39,777,898.72/7,193.31
  6. Step 6: Final answer
    x = 5,529.85

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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.