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Finding the Fourth Proportional to 5,774.40, 7,963.65 and 4,654.98

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Solution

The fourth proportional to 5,774.40, 7,963.65 and 4,654.98 is: 6,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.40 : 7,963.65 = 4,654.98 : x
  2. Step 2: Convert to fraction form
    5,774.40/7,963.65 = 4,654.98/x
  3. Step 3: Cross multiply
    5,774.40x = 7,963.65 × 4,654.98
  4. Step 4: Simplify right side
    5,774.40x = 37,070,631.48
  5. Step 5: Solve for x
    x = 37,070,631.48/5,774.40
  6. Step 6: Final answer
    x = 6,419.82

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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.