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Finding the Fourth Proportional to 4,940.34, 7,402.14 and 4,317.18

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Solution

The fourth proportional to 4,940.34, 7,402.14 and 4,317.18 is: 6,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.34 : 7,402.14 = 4,317.18 : x
  2. Step 2: Convert to fraction form
    4,940.34/7,402.14 = 4,317.18/x
  3. Step 3: Cross multiply
    4,940.34x = 7,402.14 × 4,317.18
  4. Step 4: Simplify right side
    4,940.34x = 31,956,370.77
  5. Step 5: Solve for x
    x = 31,956,370.77/4,940.34
  6. Step 6: Final answer
    x = 6,468.46

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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.