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Finding the Fourth Proportional to 52,610.48, 78,905.08 and 19,319.12

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Solution

The fourth proportional to 52,610.48, 78,905.08 and 19,319.12 is: 28,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,610.48 : 78,905.08 = 19,319.12 : x
  2. Step 2: Convert to fraction form
    52,610.48/78,905.08 = 19,319.12/x
  3. Step 3: Cross multiply
    52,610.48x = 78,905.08 × 19,319.12
  4. Step 4: Simplify right side
    52,610.48x = 1,524,376,709.13
  5. Step 5: Solve for x
    x = 1,524,376,709.13/52,610.48
  6. Step 6: Final answer
    x = 28,974.77

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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.