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Finding the Fourth Proportional to 5,645.79, 7,795.08 and 4,317.18

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Solution

The fourth proportional to 5,645.79, 7,795.08 and 4,317.18 is: 5,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.79 : 7,795.08 = 4,317.18 : x
  2. Step 2: Convert to fraction form
    5,645.79/7,795.08 = 4,317.18/x
  3. Step 3: Cross multiply
    5,645.79x = 7,795.08 × 4,317.18
  4. Step 4: Simplify right side
    5,645.79x = 33,652,763.47
  5. Step 5: Solve for x
    x = 33,652,763.47/5,645.79
  6. Step 6: Final answer
    x = 5,960.68

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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.