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Finding the Fourth Proportional to 8,749,714.80, 13,124,572.20 and 4,907,593.20

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Solution

The fourth proportional to 8,749,714.80, 13,124,572.20 and 4,907,593.20 is: 7,361,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,714.80 : 13,124,572.20 = 4,907,593.20 : x
  2. Step 2: Convert to fraction form
    8,749,714.80/13,124,572.20 = 4,907,593.20/x
  3. Step 3: Cross multiply
    8,749,714.80x = 13,124,572.20 × 4,907,593.20
  4. Step 4: Simplify right side
    8,749,714.80x = 64,410,061,281,629.04
  5. Step 5: Solve for x
    x = 64,410,061,281,629.04/8,749,714.80
  6. Step 6: Final answer
    x = 7,361,389.80

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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.