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Finding the Fourth Proportional to 45,492.93, 68,277.74 and 19,216.53

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Solution

The fourth proportional to 45,492.93, 68,277.74 and 19,216.53 is: 28,840.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,492.93 : 68,277.74 = 19,216.53 : x
  2. Step 2: Convert to fraction form
    45,492.93/68,277.74 = 19,216.53/x
  3. Step 3: Cross multiply
    45,492.93x = 68,277.74 × 19,216.53
  4. Step 4: Simplify right side
    45,492.93x = 1,312,061,142.96
  5. Step 5: Solve for x
    x = 1,312,061,142.96/45,492.93
  6. Step 6: Final answer
    x = 28,840.99

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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.