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Finding the Fourth Proportional to 7,755.11, 10,702.16 and 4,397.84

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Solution

The fourth proportional to 7,755.11, 10,702.16 and 4,397.84 is: 6,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.11 : 10,702.16 = 4,397.84 : x
  2. Step 2: Convert to fraction form
    7,755.11/10,702.16 = 4,397.84/x
  3. Step 3: Cross multiply
    7,755.11x = 10,702.16 × 4,397.84
  4. Step 4: Simplify right side
    7,755.11x = 47,066,425.08
  5. Step 5: Solve for x
    x = 47,066,425.08/7,755.11
  6. Step 6: Final answer
    x = 6,069.08

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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.