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Finding the Fourth Proportional to 65,920.98, 98,880.72 and 16,001.64

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Solution

The fourth proportional to 65,920.98, 98,880.72 and 16,001.64 is: 24,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.98 : 98,880.72 = 16,001.64 : x
  2. Step 2: Convert to fraction form
    65,920.98/98,880.72 = 16,001.64/x
  3. Step 3: Cross multiply
    65,920.98x = 98,880.72 × 16,001.64
  4. Step 4: Simplify right side
    65,920.98x = 1,582,253,684.38
  5. Step 5: Solve for x
    x = 1,582,253,684.38/65,920.98
  6. Step 6: Final answer
    x = 24,002.28

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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.