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Finding the Fourth Proportional to 52,509.50, 78,800.73 and 21,344.78

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Solution

The fourth proportional to 52,509.50, 78,800.73 and 21,344.78 is: 32,032.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,509.50 : 78,800.73 = 21,344.78 : x
  2. Step 2: Convert to fraction form
    52,509.50/78,800.73 = 21,344.78/x
  3. Step 3: Cross multiply
    52,509.50x = 78,800.73 × 21,344.78
  4. Step 4: Simplify right side
    52,509.50x = 1,681,984,245.69
  5. Step 5: Solve for x
    x = 1,681,984,245.69/52,509.50
  6. Step 6: Final answer
    x = 32,032.00

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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.