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Finding the Fourth Proportional to 12,803.59, 19,226.22 and 7,904.37

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Solution

The fourth proportional to 12,803.59, 19,226.22 and 7,904.37 is: 11,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.59 : 19,226.22 = 7,904.37 : x
  2. Step 2: Convert to fraction form
    12,803.59/19,226.22 = 7,904.37/x
  3. Step 3: Cross multiply
    12,803.59x = 19,226.22 × 7,904.37
  4. Step 4: Simplify right side
    12,803.59x = 151,971,156.58
  5. Step 5: Solve for x
    x = 151,971,156.58/12,803.59
  6. Step 6: Final answer
    x = 11,869.42

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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.