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Finding the Fourth Proportional to 5,743,932.76, 7,927,978 and 3,570,117.68

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Solution

The fourth proportional to 5,743,932.76, 7,927,978 and 3,570,117.68 is: 4,927,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,743,932.76 : 7,927,978 = 3,570,117.68 : x
  2. Step 2: Convert to fraction form
    5,743,932.76/7,927,978 = 3,570,117.68/x
  3. Step 3: Cross multiply
    5,743,932.76x = 7,927,978 × 3,570,117.68
  4. Step 4: Simplify right side
    5,743,932.76x = 28,303,814,424,451.04
  5. Step 5: Solve for x
    x = 28,303,814,424,451.04/5,743,932.76
  6. Step 6: Final answer
    x = 4,927,601.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.