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Finding the Fourth Proportional to 65,809.71, 98,484.93 and 53,824.95

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Solution

The fourth proportional to 65,809.71, 98,484.93 and 53,824.95 is: 80,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,809.71 : 98,484.93 = 53,824.95 : x
  2. Step 2: Convert to fraction form
    65,809.71/98,484.93 = 53,824.95/x
  3. Step 3: Cross multiply
    65,809.71x = 98,484.93 × 53,824.95
  4. Step 4: Simplify right side
    65,809.71x = 5,300,946,433.00
  5. Step 5: Solve for x
    x = 5,300,946,433.00/65,809.71
  6. Step 6: Final answer
    x = 80,549.61

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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.