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Finding the Fourth Proportional to 65,863.40, 98,792.70 and 26,409.80

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Solution

The fourth proportional to 65,863.40, 98,792.70 and 26,409.80 is: 39,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.40 : 98,792.70 = 26,409.80 : x
  2. Step 2: Convert to fraction form
    65,863.40/98,792.70 = 26,409.80/x
  3. Step 3: Cross multiply
    65,863.40x = 98,792.70 × 26,409.80
  4. Step 4: Simplify right side
    65,863.40x = 2,609,095,448.46
  5. Step 5: Solve for x
    x = 2,609,095,448.46/65,863.40
  6. Step 6: Final answer
    x = 39,613.74

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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.