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Finding the Fourth Proportional to 25,881.08, 38,820.52 and 7,413.08

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Solution

The fourth proportional to 25,881.08, 38,820.52 and 7,413.08 is: 11,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,881.08 : 38,820.52 = 7,413.08 : x
  2. Step 2: Convert to fraction form
    25,881.08/38,820.52 = 7,413.08/x
  3. Step 3: Cross multiply
    25,881.08x = 38,820.52 × 7,413.08
  4. Step 4: Simplify right side
    25,881.08x = 287,779,620.40
  5. Step 5: Solve for x
    x = 287,779,620.40/25,881.08
  6. Step 6: Final answer
    x = 11,119.30

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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.