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Finding the Fourth Proportional to 8,803.37, 12,153.90 and 7,819.22

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Solution

The fourth proportional to 8,803.37, 12,153.90 and 7,819.22 is: 10,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.37 : 12,153.90 = 7,819.22 : x
  2. Step 2: Convert to fraction form
    8,803.37/12,153.90 = 7,819.22/x
  3. Step 3: Cross multiply
    8,803.37x = 12,153.90 × 7,819.22
  4. Step 4: Simplify right side
    8,803.37x = 95,033,957.19
  5. Step 5: Solve for x
    x = 95,033,957.19/8,803.37
  6. Step 6: Final answer
    x = 10,795.19

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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.