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Finding the Fourth Proportional to 8,663,292.40, 12,980,941.80 and 5,462,690.80

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Solution

The fourth proportional to 8,663,292.40, 12,980,941.80 and 5,462,690.80 is: 8,185,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663,292.40 : 12,980,941.80 = 5,462,690.80 : x
  2. Step 2: Convert to fraction form
    8,663,292.40/12,980,941.80 = 5,462,690.80/x
  3. Step 3: Cross multiply
    8,663,292.40x = 12,980,941.80 × 5,462,690.80
  4. Step 4: Simplify right side
    8,663,292.40x = 70,910,871,346,195.44
  5. Step 5: Solve for x
    x = 70,910,871,346,195.44/8,663,292.40
  6. Step 6: Final answer
    x = 8,185,210.43

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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.