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Finding the Fourth Proportional to 62,411.50, 93,617.25 and 20,858.50

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Solution

The fourth proportional to 62,411.50, 93,617.25 and 20,858.50 is: 31,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,411.50 : 93,617.25 = 20,858.50 : x
  2. Step 2: Convert to fraction form
    62,411.50/93,617.25 = 20,858.50/x
  3. Step 3: Cross multiply
    62,411.50x = 93,617.25 × 20,858.50
  4. Step 4: Simplify right side
    62,411.50x = 1,952,715,409.13
  5. Step 5: Solve for x
    x = 1,952,715,409.13/62,411.50
  6. Step 6: Final answer
    x = 31,287.75

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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.