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Finding the Fourth Proportional to 56,492.99, 84,744.48 and 20,954.72

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Solution

The fourth proportional to 56,492.99, 84,744.48 and 20,954.72 is: 31,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,492.99 : 84,744.48 = 20,954.72 : x
  2. Step 2: Convert to fraction form
    56,492.99/84,744.48 = 20,954.72/x
  3. Step 3: Cross multiply
    56,492.99x = 84,744.48 × 20,954.72
  4. Step 4: Simplify right side
    56,492.99x = 1,775,796,545.83
  5. Step 5: Solve for x
    x = 1,775,796,545.83/56,492.99
  6. Step 6: Final answer
    x = 31,433.92

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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.