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Finding the Fourth Proportional to 55,859.59, 83,762.99 and 20,296.12

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Solution

The fourth proportional to 55,859.59, 83,762.99 and 20,296.12 is: 30,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,859.59 : 83,762.99 = 20,296.12 : x
  2. Step 2: Convert to fraction form
    55,859.59/83,762.99 = 20,296.12/x
  3. Step 3: Cross multiply
    55,859.59x = 83,762.99 × 20,296.12
  4. Step 4: Simplify right side
    55,859.59x = 1,700,063,696.60
  5. Step 5: Solve for x
    x = 1,700,063,696.60/55,859.59
  6. Step 6: Final answer
    x = 30,434.59

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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.