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Finding the Fourth Proportional to 8,617,569.72, 11,891,888.37 and 4,697,239.63

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Solution

The fourth proportional to 8,617,569.72, 11,891,888.37 and 4,697,239.63 is: 6,481,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617,569.72 : 11,891,888.37 = 4,697,239.63 : x
  2. Step 2: Convert to fraction form
    8,617,569.72/11,891,888.37 = 4,697,239.63/x
  3. Step 3: Cross multiply
    8,617,569.72x = 11,891,888.37 × 4,697,239.63
  4. Step 4: Simplify right side
    8,617,569.72x = 55,859,049,327,100.10
  5. Step 5: Solve for x
    x = 55,859,049,327,100.10/8,617,569.72
  6. Step 6: Final answer
    x = 6,481,995.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.