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Finding the Fourth Proportional to 6,911,569.27, 9,537,969.69 and 3,855,783.52

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Solution

The fourth proportional to 6,911,569.27, 9,537,969.69 and 3,855,783.52 is: 5,320,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911,569.27 : 9,537,969.69 = 3,855,783.52 : x
  2. Step 2: Convert to fraction form
    6,911,569.27/9,537,969.69 = 3,855,783.52/x
  3. Step 3: Cross multiply
    6,911,569.27x = 9,537,969.69 × 3,855,783.52
  4. Step 4: Simplify right side
    6,911,569.27x = 36,776,346,292,388.50
  5. Step 5: Solve for x
    x = 36,776,346,292,388.50/6,911,569.27
  6. Step 6: Final answer
    x = 5,320,983.54

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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.