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Finding the Fourth Proportional to 62,509.50, 86,255.49 and 49,795.05

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Solution

The fourth proportional to 62,509.50, 86,255.49 and 49,795.05 is: 68,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,509.50 : 86,255.49 = 49,795.05 : x
  2. Step 2: Convert to fraction form
    62,509.50/86,255.49 = 49,795.05/x
  3. Step 3: Cross multiply
    62,509.50x = 86,255.49 × 49,795.05
  4. Step 4: Simplify right side
    62,509.50x = 4,295,096,437.32
  5. Step 5: Solve for x
    x = 4,295,096,437.32/62,509.50
  6. Step 6: Final answer
    x = 68,711.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.