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Finding the Fourth Proportional to 4,980.65, 7,408.17 and 4,536.86

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Solution

The fourth proportional to 4,980.65, 7,408.17 and 4,536.86 is: 6,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.65 : 7,408.17 = 4,536.86 : x
  2. Step 2: Convert to fraction form
    4,980.65/7,408.17 = 4,536.86/x
  3. Step 3: Cross multiply
    4,980.65x = 7,408.17 × 4,536.86
  4. Step 4: Simplify right side
    4,980.65x = 33,609,793.11
  5. Step 5: Solve for x
    x = 33,609,793.11/4,980.65
  6. Step 6: Final answer
    x = 6,748.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.