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Finding the Fourth Proportional to 59,338.78, 89,009.08 and 19,357.58

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Solution

The fourth proportional to 59,338.78, 89,009.08 and 19,357.58 is: 29,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,338.78 : 89,009.08 = 19,357.58 : x
  2. Step 2: Convert to fraction form
    59,338.78/89,009.08 = 19,357.58/x
  3. Step 3: Cross multiply
    59,338.78x = 89,009.08 × 19,357.58
  4. Step 4: Simplify right side
    59,338.78x = 1,723,000,560.96
  5. Step 5: Solve for x
    x = 1,723,000,560.96/59,338.78
  6. Step 6: Final answer
    x = 29,036.67

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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.