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Finding the Fourth Proportional to 7,988.61, 11,971.98 and 5,068.97

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Solution

The fourth proportional to 7,988.61, 11,971.98 and 5,068.97 is: 7,596.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.61 : 11,971.98 = 5,068.97 : x
  2. Step 2: Convert to fraction form
    7,988.61/11,971.98 = 5,068.97/x
  3. Step 3: Cross multiply
    7,988.61x = 11,971.98 × 5,068.97
  4. Step 4: Simplify right side
    7,988.61x = 60,685,607.46
  5. Step 5: Solve for x
    x = 60,685,607.46/7,988.61
  6. Step 6: Final answer
    x = 7,596.52

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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.