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Finding the Fourth Proportional to 25,607.91, 38,413.08 and 12,444.60

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Solution

The fourth proportional to 25,607.91, 38,413.08 and 12,444.60 is: 18,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,607.91 : 38,413.08 = 12,444.60 : x
  2. Step 2: Convert to fraction form
    25,607.91/38,413.08 = 12,444.60/x
  3. Step 3: Cross multiply
    25,607.91x = 38,413.08 × 12,444.60
  4. Step 4: Simplify right side
    25,607.91x = 478,035,415.37
  5. Step 5: Solve for x
    x = 478,035,415.37/25,607.91
  6. Step 6: Final answer
    x = 18,667.49

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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.