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Finding the Fourth Proportional to 8,739,064.20, 13,114,501.20 and 4,900,879.20

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Solution

The fourth proportional to 8,739,064.20, 13,114,501.20 and 4,900,879.20 is: 7,354,630.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739,064.20 : 13,114,501.20 = 4,900,879.20 : x
  2. Step 2: Convert to fraction form
    8,739,064.20/13,114,501.20 = 4,900,879.20/x
  3. Step 3: Cross multiply
    8,739,064.20x = 13,114,501.20 × 4,900,879.20
  4. Step 4: Simplify right side
    8,739,064.20x = 64,272,586,149,455.04
  5. Step 5: Solve for x
    x = 64,272,586,149,455.04/8,739,064.20
  6. Step 6: Final answer
    x = 7,354,630.28

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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.