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Finding the Fourth Proportional to 8,352,642.80, 12,528,964.20 and 4,993,410.80

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Solution

The fourth proportional to 8,352,642.80, 12,528,964.20 and 4,993,410.80 is: 7,490,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352,642.80 : 12,528,964.20 = 4,993,410.80 : x
  2. Step 2: Convert to fraction form
    8,352,642.80/12,528,964.20 = 4,993,410.80/x
  3. Step 3: Cross multiply
    8,352,642.80x = 12,528,964.20 × 4,993,410.80
  4. Step 4: Simplify right side
    8,352,642.80x = 62,562,265,149,093.35
  5. Step 5: Solve for x
    x = 62,562,265,149,093.35/8,352,642.80
  6. Step 6: Final answer
    x = 7,490,116.20

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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.