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Finding the Fourth Proportional to 45,800.55, 68,710.64 and 14,209.93

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Solution

The fourth proportional to 45,800.55, 68,710.64 and 14,209.93 is: 21,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,800.55 : 68,710.64 = 14,209.93 : x
  2. Step 2: Convert to fraction form
    45,800.55/68,710.64 = 14,209.93/x
  3. Step 3: Cross multiply
    45,800.55x = 68,710.64 × 14,209.93
  4. Step 4: Simplify right side
    45,800.55x = 976,373,399.49
  5. Step 5: Solve for x
    x = 976,373,399.49/45,800.55
  6. Step 6: Final answer
    x = 21,317.94

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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.