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Finding the Fourth Proportional to 55,655.79, 83,483.70 and 16,215.99

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Solution

The fourth proportional to 55,655.79, 83,483.70 and 16,215.99 is: 24,323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.79 : 83,483.70 = 16,215.99 : x
  2. Step 2: Convert to fraction form
    55,655.79/83,483.70 = 16,215.99/x
  3. Step 3: Cross multiply
    55,655.79x = 83,483.70 × 16,215.99
  4. Step 4: Simplify right side
    55,655.79x = 1,353,770,844.36
  5. Step 5: Solve for x
    x = 1,353,770,844.36/55,655.79
  6. Step 6: Final answer
    x = 24,323.99

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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.