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Finding the Fourth Proportional to 5,309.93, 7,308.36 and 4,676.31

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Solution

The fourth proportional to 5,309.93, 7,308.36 and 4,676.31 is: 6,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.93 : 7,308.36 = 4,676.31 : x
  2. Step 2: Convert to fraction form
    5,309.93/7,308.36 = 4,676.31/x
  3. Step 3: Cross multiply
    5,309.93x = 7,308.36 × 4,676.31
  4. Step 4: Simplify right side
    5,309.93x = 34,176,156.95
  5. Step 5: Solve for x
    x = 34,176,156.95/5,309.93
  6. Step 6: Final answer
    x = 6,436.28

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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.