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Finding the Fourth Proportional to 10,658.67, 15,986.86 and 3,263.12

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Solution

The fourth proportional to 10,658.67, 15,986.86 and 3,263.12 is: 4,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,658.67 : 15,986.86 = 3,263.12 : x
  2. Step 2: Convert to fraction form
    10,658.67/15,986.86 = 3,263.12/x
  3. Step 3: Cross multiply
    10,658.67x = 15,986.86 × 3,263.12
  4. Step 4: Simplify right side
    10,658.67x = 52,166,962.67
  5. Step 5: Solve for x
    x = 52,166,962.67/10,658.67
  6. Step 6: Final answer
    x = 4,894.32

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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.