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Finding the Fourth Proportional to 7,755.14, 10,702.67 and 4,398.54

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Solution

The fourth proportional to 7,755.14, 10,702.67 and 4,398.54 is: 6,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.14 : 10,702.67 = 4,398.54 : x
  2. Step 2: Convert to fraction form
    7,755.14/10,702.67 = 4,398.54/x
  3. Step 3: Cross multiply
    7,755.14x = 10,702.67 × 4,398.54
  4. Step 4: Simplify right side
    7,755.14x = 47,076,100.11
  5. Step 5: Solve for x
    x = 47,076,100.11/7,755.14
  6. Step 6: Final answer
    x = 6,070.31

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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.