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Finding the Fourth Proportional to 55,774.55, 83,661.83 and 14,221.55

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Solution

The fourth proportional to 55,774.55, 83,661.83 and 14,221.55 is: 21,332.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,774.55 : 83,661.83 = 14,221.55 : x
  2. Step 2: Convert to fraction form
    55,774.55/83,661.83 = 14,221.55/x
  3. Step 3: Cross multiply
    55,774.55x = 83,661.83 × 14,221.55
  4. Step 4: Simplify right side
    55,774.55x = 1,189,800,409.02
  5. Step 5: Solve for x
    x = 1,189,800,409.02/55,774.55
  6. Step 6: Final answer
    x = 21,332.32

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1.5x scale

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.