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Finding the Fourth Proportional to 14,353.18, 21,490.88 and 7,413.10

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Solution

The fourth proportional to 14,353.18, 21,490.88 and 7,413.10 is: 11,099.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.18 : 21,490.88 = 7,413.10 : x
  2. Step 2: Convert to fraction form
    14,353.18/21,490.88 = 7,413.10/x
  3. Step 3: Cross multiply
    14,353.18x = 21,490.88 × 7,413.10
  4. Step 4: Simplify right side
    14,353.18x = 159,314,042.53
  5. Step 5: Solve for x
    x = 159,314,042.53/14,353.18
  6. Step 6: Final answer
    x = 11,099.56

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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.