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Finding the Fourth Proportional to 92,477.25, 138,724.07 and 25,918.18

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Solution

The fourth proportional to 92,477.25, 138,724.07 and 25,918.18 is: 38,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,477.25 : 138,724.07 = 25,918.18 : x
  2. Step 2: Convert to fraction form
    92,477.25/138,724.07 = 25,918.18/x
  3. Step 3: Cross multiply
    92,477.25x = 138,724.07 × 25,918.18
  4. Step 4: Simplify right side
    92,477.25x = 3,595,475,416.59
  5. Step 5: Solve for x
    x = 3,595,475,416.59/92,477.25
  6. Step 6: Final answer
    x = 38,879.57

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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.