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Finding the Fourth Proportional to 57,647.35, 86,464.54 and 15,530.55

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Solution

The fourth proportional to 57,647.35, 86,464.54 and 15,530.55 is: 23,294.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,647.35 : 86,464.54 = 15,530.55 : x
  2. Step 2: Convert to fraction form
    57,647.35/86,464.54 = 15,530.55/x
  3. Step 3: Cross multiply
    57,647.35x = 86,464.54 × 15,530.55
  4. Step 4: Simplify right side
    57,647.35x = 1,342,841,861.70
  5. Step 5: Solve for x
    x = 1,342,841,861.70/57,647.35
  6. Step 6: Final answer
    x = 23,294.08

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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.