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Finding the Fourth Proportional to 5,117.48, 7,686.48 and 4,949.36

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Solution

The fourth proportional to 5,117.48, 7,686.48 and 4,949.36 is: 7,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.48 : 7,686.48 = 4,949.36 : x
  2. Step 2: Convert to fraction form
    5,117.48/7,686.48 = 4,949.36/x
  3. Step 3: Cross multiply
    5,117.48x = 7,686.48 × 4,949.36
  4. Step 4: Simplify right side
    5,117.48x = 38,043,156.65
  5. Step 5: Solve for x
    x = 38,043,156.65/5,117.48
  6. Step 6: Final answer
    x = 7,433.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.