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Finding the Fourth Proportional to 10,931.13, 16,413.06 and 6,256.41

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Solution

The fourth proportional to 10,931.13, 16,413.06 and 6,256.41 is: 9,393.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.13 : 16,413.06 = 6,256.41 : x
  2. Step 2: Convert to fraction form
    10,931.13/16,413.06 = 6,256.41/x
  3. Step 3: Cross multiply
    10,931.13x = 16,413.06 × 6,256.41
  4. Step 4: Simplify right side
    10,931.13x = 102,686,832.71
  5. Step 5: Solve for x
    x = 102,686,832.71/10,931.13
  6. Step 6: Final answer
    x = 9,393.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.