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Finding the Fourth Proportional to 7,111,816.80, 10,651,978.80 and 5,852,104.80

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Solution

The fourth proportional to 7,111,816.80, 10,651,978.80 and 5,852,104.80 is: 8,765,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111,816.80 : 10,651,978.80 = 5,852,104.80 : x
  2. Step 2: Convert to fraction form
    7,111,816.80/10,651,978.80 = 5,852,104.80/x
  3. Step 3: Cross multiply
    7,111,816.80x = 10,651,978.80 × 5,852,104.80
  4. Step 4: Simplify right side
    7,111,816.80x = 62,336,496,264,978.24
  5. Step 5: Solve for x
    x = 62,336,496,264,978.24/7,111,816.80
  6. Step 6: Final answer
    x = 8,765,199.95

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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.