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Finding the Fourth Proportional to 52,600.80, 78,898.54 and 19,318.32

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Solution

The fourth proportional to 52,600.80, 78,898.54 and 19,318.32 is: 28,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,600.80 : 78,898.54 = 19,318.32 : x
  2. Step 2: Convert to fraction form
    52,600.80/78,898.54 = 19,318.32/x
  3. Step 3: Cross multiply
    52,600.80x = 78,898.54 × 19,318.32
  4. Step 4: Simplify right side
    52,600.80x = 1,524,187,243.25
  5. Step 5: Solve for x
    x = 1,524,187,243.25/52,600.80
  6. Step 6: Final answer
    x = 28,976.50

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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.