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Finding the Fourth Proportional to 10,702.76, 14,770.49 and 5,987.07

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Solution

The fourth proportional to 10,702.76, 14,770.49 and 5,987.07 is: 8,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,702.76 : 14,770.49 = 5,987.07 : x
  2. Step 2: Convert to fraction form
    10,702.76/14,770.49 = 5,987.07/x
  3. Step 3: Cross multiply
    10,702.76x = 14,770.49 × 5,987.07
  4. Step 4: Simplify right side
    10,702.76x = 88,431,927.63
  5. Step 5: Solve for x
    x = 88,431,927.63/10,702.76
  6. Step 6: Final answer
    x = 8,262.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.