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Finding the Fourth Proportional to 16,642,407.40, 24,963,611.10 and 8,118,356.20

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Solution

The fourth proportional to 16,642,407.40, 24,963,611.10 and 8,118,356.20 is: 12,177,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,642,407.40 : 24,963,611.10 = 8,118,356.20 : x
  2. Step 2: Convert to fraction form
    16,642,407.40/24,963,611.10 = 8,118,356.20/x
  3. Step 3: Cross multiply
    16,642,407.40x = 24,963,611.10 × 8,118,356.20
  4. Step 4: Simplify right side
    16,642,407.40x = 202,663,486,948,073.84
  5. Step 5: Solve for x
    x = 202,663,486,948,073.84/16,642,407.40
  6. Step 6: Final answer
    x = 12,177,534.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.