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Finding the Fourth Proportional to 5,865,918.80, 8,791,879.80 and 5,264,056.40

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Solution

The fourth proportional to 5,865,918.80, 8,791,879.80 and 5,264,056.40 is: 7,889,804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865,918.80 : 8,791,879.80 = 5,264,056.40 : x
  2. Step 2: Convert to fraction form
    5,865,918.80/8,791,879.80 = 5,264,056.40/x
  3. Step 3: Cross multiply
    5,865,918.80x = 8,791,879.80 × 5,264,056.40
  4. Step 4: Simplify right side
    5,865,918.80x = 46,280,951,129,220.73
  5. Step 5: Solve for x
    x = 46,280,951,129,220.73/5,865,918.80
  6. Step 6: Final answer
    x = 7,889,804.26

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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.