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Finding the Fourth Proportional to 14,076.60, 19,425.60 and 8,413.80

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Solution

The fourth proportional to 14,076.60, 19,425.60 and 8,413.80 is: 11,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.60 : 19,425.60 = 8,413.80 : x
  2. Step 2: Convert to fraction form
    14,076.60/19,425.60 = 8,413.80/x
  3. Step 3: Cross multiply
    14,076.60x = 19,425.60 × 8,413.80
  4. Step 4: Simplify right side
    14,076.60x = 163,443,113.28
  5. Step 5: Solve for x
    x = 163,443,113.28/14,076.60
  6. Step 6: Final answer
    x = 11,610.98

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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.