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Finding the Fourth Proportional to 8,668,778.83, 13,001,542.57 and 4,349,669.37

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Solution

The fourth proportional to 8,668,778.83, 13,001,542.57 and 4,349,669.37 is: 6,523,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668,778.83 : 13,001,542.57 = 4,349,669.37 : x
  2. Step 2: Convert to fraction form
    8,668,778.83/13,001,542.57 = 4,349,669.37/x
  3. Step 3: Cross multiply
    8,668,778.83x = 13,001,542.57 × 4,349,669.37
  4. Step 4: Simplify right side
    8,668,778.83x = 56,552,411,452,383.65
  5. Step 5: Solve for x
    x = 56,552,411,452,383.65/8,668,778.83
  6. Step 6: Final answer
    x = 6,523,688.35

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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.