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Finding the Fourth Proportional to 16,662,620.80, 24,993,931.20 and 4,695,356.80

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Solution

The fourth proportional to 16,662,620.80, 24,993,931.20 and 4,695,356.80 is: 7,043,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,662,620.80 : 24,993,931.20 = 4,695,356.80 : x
  2. Step 2: Convert to fraction form
    16,662,620.80/24,993,931.20 = 4,695,356.80/x
  3. Step 3: Cross multiply
    16,662,620.80x = 24,993,931.20 × 4,695,356.80
  4. Step 4: Simplify right side
    16,662,620.80x = 117,355,424,818,652.16
  5. Step 5: Solve for x
    x = 117,355,424,818,652.16/16,662,620.80
  6. Step 6: Final answer
    x = 7,043,035.20

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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.