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Finding the Fourth Proportional to 65,787.75, 98,681.63 and 16,539.75

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Solution

The fourth proportional to 65,787.75, 98,681.63 and 16,539.75 is: 24,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,787.75 : 98,681.63 = 16,539.75 : x
  2. Step 2: Convert to fraction form
    65,787.75/98,681.63 = 16,539.75/x
  3. Step 3: Cross multiply
    65,787.75x = 98,681.63 × 16,539.75
  4. Step 4: Simplify right side
    65,787.75x = 1,632,169,407.09
  5. Step 5: Solve for x
    x = 1,632,169,407.09/65,787.75
  6. Step 6: Final answer
    x = 24,809.63

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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.