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Finding the Fourth Proportional to 57,015.76, 85,523.64 and 15,461.68

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Solution

The fourth proportional to 57,015.76, 85,523.64 and 15,461.68 is: 23,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,015.76 : 85,523.64 = 15,461.68 : x
  2. Step 2: Convert to fraction form
    57,015.76/85,523.64 = 15,461.68/x
  3. Step 3: Cross multiply
    57,015.76x = 85,523.64 × 15,461.68
  4. Step 4: Simplify right side
    57,015.76x = 1,322,339,154.12
  5. Step 5: Solve for x
    x = 1,322,339,154.12/57,015.76
  6. Step 6: Final answer
    x = 23,192.52

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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.