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Finding the Fourth Proportional to 9,074,657.60, 13,583,992.80 and 5,276,859.20

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Solution

The fourth proportional to 9,074,657.60, 13,583,992.80 and 5,276,859.20 is: 7,899,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,074,657.60 : 13,583,992.80 = 5,276,859.20 : x
  2. Step 2: Convert to fraction form
    9,074,657.60/13,583,992.80 = 5,276,859.20/x
  3. Step 3: Cross multiply
    9,074,657.60x = 13,583,992.80 × 5,276,859.20
  4. Step 4: Simplify right side
    9,074,657.60x = 71,680,817,379,413.77
  5. Step 5: Solve for x
    x = 71,680,817,379,413.77/9,074,657.60
  6. Step 6: Final answer
    x = 7,899,010.69

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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.