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Finding the Fourth Proportional to 55,798.80, 83,698.20 and 51,133.20

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Solution

The fourth proportional to 55,798.80, 83,698.20 and 51,133.20 is: 76,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,798.80 : 83,698.20 = 51,133.20 : x
  2. Step 2: Convert to fraction form
    55,798.80/83,698.20 = 51,133.20/x
  3. Step 3: Cross multiply
    55,798.80x = 83,698.20 × 51,133.20
  4. Step 4: Simplify right side
    55,798.80x = 4,279,756,800.24
  5. Step 5: Solve for x
    x = 4,279,756,800.24/55,798.80
  6. Step 6: Final answer
    x = 76,699.80

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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.