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Finding the Fourth Proportional to 57,503.67, 86,259.69 and 18,060.45

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Solution

The fourth proportional to 57,503.67, 86,259.69 and 18,060.45 is: 27,091.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,503.67 : 86,259.69 = 18,060.45 : x
  2. Step 2: Convert to fraction form
    57,503.67/86,259.69 = 18,060.45/x
  3. Step 3: Cross multiply
    57,503.67x = 86,259.69 × 18,060.45
  4. Step 4: Simplify right side
    57,503.67x = 1,557,888,818.26
  5. Step 5: Solve for x
    x = 1,557,888,818.26/57,503.67
  6. Step 6: Final answer
    x = 27,091.99

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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.