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Finding the Fourth Proportional to 61,860.53, 92,789.99 and 15,113.81

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Solution

The fourth proportional to 61,860.53, 92,789.99 and 15,113.81 is: 22,670.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,860.53 : 92,789.99 = 15,113.81 : x
  2. Step 2: Convert to fraction form
    61,860.53/92,789.99 = 15,113.81/x
  3. Step 3: Cross multiply
    61,860.53x = 92,789.99 × 15,113.81
  4. Step 4: Simplify right side
    61,860.53x = 1,402,410,435.17
  5. Step 5: Solve for x
    x = 1,402,410,435.17/61,860.53
  6. Step 6: Final answer
    x = 22,670.52

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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.