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Finding the Fourth Proportional to 53,221.70, 79,818.94 and 15,773.03

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Solution

The fourth proportional to 53,221.70, 79,818.94 and 15,773.03 is: 23,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.70 : 79,818.94 = 15,773.03 : x
  2. Step 2: Convert to fraction form
    53,221.70/79,818.94 = 15,773.03/x
  3. Step 3: Cross multiply
    53,221.70x = 79,818.94 × 15,773.03
  4. Step 4: Simplify right side
    53,221.70x = 1,258,986,815.39
  5. Step 5: Solve for x
    x = 1,258,986,815.39/53,221.70
  6. Step 6: Final answer
    x = 23,655.52

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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.