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Finding the Fourth Proportional to 9,886.64, 14,807.24 and 6,413.36

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Solution

The fourth proportional to 9,886.64, 14,807.24 and 6,413.36 is: 9,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.64 : 14,807.24 = 6,413.36 : x
  2. Step 2: Convert to fraction form
    9,886.64/14,807.24 = 6,413.36/x
  3. Step 3: Cross multiply
    9,886.64x = 14,807.24 × 6,413.36
  4. Step 4: Simplify right side
    9,886.64x = 94,964,160.73
  5. Step 5: Solve for x
    x = 94,964,160.73/9,886.64
  6. Step 6: Final answer
    x = 9,605.30

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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.