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Finding the Fourth Proportional to 12,606,508.80, 18,867,772.80 and 11,094,854.40

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Solution

The fourth proportional to 12,606,508.80, 18,867,772.80 and 11,094,854.40 is: 16,605,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606,508.80 : 18,867,772.80 = 11,094,854.40 : x
  2. Step 2: Convert to fraction form
    12,606,508.80/18,867,772.80 = 11,094,854.40/x
  3. Step 3: Cross multiply
    12,606,508.80x = 18,867,772.80 × 11,094,854.40
  4. Step 4: Simplify right side
    12,606,508.80x = 209,335,192,068,280.34
  5. Step 5: Solve for x
    x = 209,335,192,068,280.34/12,606,508.80
  6. Step 6: Final answer
    x = 16,605,326.30

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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.