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Finding the Fourth Proportional to 5,458.46, 7,532.99 and 4,129.86

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Solution

The fourth proportional to 5,458.46, 7,532.99 and 4,129.86 is: 5,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.46 : 7,532.99 = 4,129.86 : x
  2. Step 2: Convert to fraction form
    5,458.46/7,532.99 = 4,129.86/x
  3. Step 3: Cross multiply
    5,458.46x = 7,532.99 × 4,129.86
  4. Step 4: Simplify right side
    5,458.46x = 31,110,190.17
  5. Step 5: Solve for x
    x = 31,110,190.17/5,458.46
  6. Step 6: Final answer
    x = 5,699.44

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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.