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Finding the Fourth Proportional to 7,835,513.76, 11,751,940.08 and 3,574,680.48

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Solution

The fourth proportional to 7,835,513.76, 11,751,940.08 and 3,574,680.48 is: 5,361,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835,513.76 : 11,751,940.08 = 3,574,680.48 : x
  2. Step 2: Convert to fraction form
    7,835,513.76/11,751,940.08 = 3,574,680.48/x
  3. Step 3: Cross multiply
    7,835,513.76x = 11,751,940.08 × 3,574,680.48
  4. Step 4: Simplify right side
    7,835,513.76x = 42,009,430,806,105.64
  5. Step 5: Solve for x
    x = 42,009,430,806,105.64/7,835,513.76
  6. Step 6: Final answer
    x = 5,361,413.70

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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.