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Finding the Fourth Proportional to 55,306.99, 82,960.55 and 13,753.99

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Solution

The fourth proportional to 55,306.99, 82,960.55 and 13,753.99 is: 20,631.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,306.99 : 82,960.55 = 13,753.99 : x
  2. Step 2: Convert to fraction form
    55,306.99/82,960.55 = 13,753.99/x
  3. Step 3: Cross multiply
    55,306.99x = 82,960.55 × 13,753.99
  4. Step 4: Simplify right side
    55,306.99x = 1,141,038,506.32
  5. Step 5: Solve for x
    x = 1,141,038,506.32/55,306.99
  6. Step 6: Final answer
    x = 20,631.00

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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.