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Finding the Fourth Proportional to 5,870,643.80, 8,805,965.70 and 2,681,997.80

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Solution

The fourth proportional to 5,870,643.80, 8,805,965.70 and 2,681,997.80 is: 4,022,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870,643.80 : 8,805,965.70 = 2,681,997.80 : x
  2. Step 2: Convert to fraction form
    5,870,643.80/8,805,965.70 = 2,681,997.80/x
  3. Step 3: Cross multiply
    5,870,643.80x = 8,805,965.70 × 2,681,997.80
  4. Step 4: Simplify right side
    5,870,643.80x = 23,617,580,634,275.46
  5. Step 5: Solve for x
    x = 23,617,580,634,275.46/5,870,643.80
  6. Step 6: Final answer
    x = 4,022,996.70

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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.