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Finding the Fourth Proportional to 4,259.67, 6,390.11 and 1,792.95

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Solution

The fourth proportional to 4,259.67, 6,390.11 and 1,792.95 is: 2,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.67 : 6,390.11 = 1,792.95 : x
  2. Step 2: Convert to fraction form
    4,259.67/6,390.11 = 1,792.95/x
  3. Step 3: Cross multiply
    4,259.67x = 6,390.11 × 1,792.95
  4. Step 4: Simplify right side
    4,259.67x = 11,457,138.76
  5. Step 5: Solve for x
    x = 11,457,138.76/4,259.67
  6. Step 6: Final answer
    x = 2,689.68

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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.