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Finding the Fourth Proportional to 4,059.69, 6,089.54 and 981.69

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Solution

The fourth proportional to 4,059.69, 6,089.54 and 981.69 is: 1,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,059.69 : 6,089.54 = 981.69 : x
  2. Step 2: Convert to fraction form
    4,059.69/6,089.54 = 981.69/x
  3. Step 3: Cross multiply
    4,059.69x = 6,089.54 × 981.69
  4. Step 4: Simplify right side
    4,059.69x = 5,978,035.61
  5. Step 5: Solve for x
    x = 5,978,035.61/4,059.69
  6. Step 6: Final answer
    x = 1,472.54

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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.