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Finding the Fourth Proportional to 12,557.83, 18,835.83 and 5,061.89

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Solution

The fourth proportional to 12,557.83, 18,835.83 and 5,061.89 is: 7,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.83 : 18,835.83 = 5,061.89 : x
  2. Step 2: Convert to fraction form
    12,557.83/18,835.83 = 5,061.89/x
  3. Step 3: Cross multiply
    12,557.83x = 18,835.83 × 5,061.89
  4. Step 4: Simplify right side
    12,557.83x = 95,344,805.34
  5. Step 5: Solve for x
    x = 95,344,805.34/12,557.83
  6. Step 6: Final answer
    x = 7,592.46

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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.