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Finding the Fourth Proportional to 8,709,854.74, 12,019,908.67 and 4,789,908.88

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Solution

The fourth proportional to 8,709,854.74, 12,019,908.67 and 4,789,908.88 is: 6,610,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709,854.74 : 12,019,908.67 = 4,789,908.88 : x
  2. Step 2: Convert to fraction form
    8,709,854.74/12,019,908.67 = 4,789,908.88/x
  3. Step 3: Cross multiply
    8,709,854.74x = 12,019,908.67 × 4,789,908.88
  4. Step 4: Simplify right side
    8,709,854.74x = 57,574,267,233,197.45
  5. Step 5: Solve for x
    x = 57,574,267,233,197.45/8,709,854.74
  6. Step 6: Final answer
    x = 6,610,244.25

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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.