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Finding the Fourth Proportional to 65,920.49, 98,880.77 and 16,000.66

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Solution

The fourth proportional to 65,920.49, 98,880.77 and 16,000.66 is: 24,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.49 : 98,880.77 = 16,000.66 : x
  2. Step 2: Convert to fraction form
    65,920.49/98,880.77 = 16,000.66/x
  3. Step 3: Cross multiply
    65,920.49x = 98,880.77 × 16,000.66
  4. Step 4: Simplify right side
    65,920.49x = 1,582,157,581.31
  5. Step 5: Solve for x
    x = 1,582,157,581.31/65,920.49
  6. Step 6: Final answer
    x = 24,001.00

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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.