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Finding the Fourth Proportional to 7,100,447.60, 10,650,671.40 and 5,903,721.20

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Solution

The fourth proportional to 7,100,447.60, 10,650,671.40 and 5,903,721.20 is: 8,855,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100,447.60 : 10,650,671.40 = 5,903,721.20 : x
  2. Step 2: Convert to fraction form
    7,100,447.60/10,650,671.40 = 5,903,721.20/x
  3. Step 3: Cross multiply
    7,100,447.60x = 10,650,671.40 × 5,903,721.20
  4. Step 4: Simplify right side
    7,100,447.60x = 62,878,594,538,413.69
  5. Step 5: Solve for x
    x = 62,878,594,538,413.69/7,100,447.60
  6. Step 6: Final answer
    x = 8,855,581.80

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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.