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Finding the Fourth Proportional to 53,187.56, 79,793 and 15,750.55

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Solution

The fourth proportional to 53,187.56, 79,793 and 15,750.55 is: 23,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.56 : 79,793 = 15,750.55 : x
  2. Step 2: Convert to fraction form
    53,187.56/79,793 = 15,750.55/x
  3. Step 3: Cross multiply
    53,187.56x = 79,793 × 15,750.55
  4. Step 4: Simplify right side
    53,187.56x = 1,256,783,636.15
  5. Step 5: Solve for x
    x = 1,256,783,636.15/53,187.56
  6. Step 6: Final answer
    x = 23,629.28

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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.