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Finding the Fourth Proportional to 7,898.60, 11,813.02 and 7,027.22

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Solution

The fourth proportional to 7,898.60, 11,813.02 and 7,027.22 is: 10,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.60 : 11,813.02 = 7,027.22 : x
  2. Step 2: Convert to fraction form
    7,898.60/11,813.02 = 7,027.22/x
  3. Step 3: Cross multiply
    7,898.60x = 11,813.02 × 7,027.22
  4. Step 4: Simplify right side
    7,898.60x = 83,012,596.20
  5. Step 5: Solve for x
    x = 83,012,596.20/7,898.60
  6. Step 6: Final answer
    x = 10,509.79

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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.