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Finding the Fourth Proportional to 55,749.80, 83,624.70 and 14,196.80

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Solution

The fourth proportional to 55,749.80, 83,624.70 and 14,196.80 is: 21,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,749.80 : 83,624.70 = 14,196.80 : x
  2. Step 2: Convert to fraction form
    55,749.80/83,624.70 = 14,196.80/x
  3. Step 3: Cross multiply
    55,749.80x = 83,624.70 × 14,196.80
  4. Step 4: Simplify right side
    55,749.80x = 1,187,203,140.96
  5. Step 5: Solve for x
    x = 1,187,203,140.96/55,749.80
  6. Step 6: Final answer
    x = 21,295.20

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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.