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Finding the Fourth Proportional to 62,409.25, 93,613.88 and 20,856.25

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Solution

The fourth proportional to 62,409.25, 93,613.88 and 20,856.25 is: 31,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.25 : 93,613.88 = 20,856.25 : x
  2. Step 2: Convert to fraction form
    62,409.25/93,613.88 = 20,856.25/x
  3. Step 3: Cross multiply
    62,409.25x = 93,613.88 × 20,856.25
  4. Step 4: Simplify right side
    62,409.25x = 1,952,434,484.75
  5. Step 5: Solve for x
    x = 1,952,434,484.75/62,409.25
  6. Step 6: Final answer
    x = 31,284.38

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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.