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Finding the Fourth Proportional to 11,892.76, 16,413.74 and 6,856.02

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Solution

The fourth proportional to 11,892.76, 16,413.74 and 6,856.02 is: 9,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.76 : 16,413.74 = 6,856.02 : x
  2. Step 2: Convert to fraction form
    11,892.76/16,413.74 = 6,856.02/x
  3. Step 3: Cross multiply
    11,892.76x = 16,413.74 × 6,856.02
  4. Step 4: Simplify right side
    11,892.76x = 112,532,929.71
  5. Step 5: Solve for x
    x = 112,532,929.71/11,892.76
  6. Step 6: Final answer
    x = 9,462.31

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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.