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Finding the Fourth Proportional to 8,916,456.54, 12,308,476.50 and 6,019,770.90

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Solution

The fourth proportional to 8,916,456.54, 12,308,476.50 and 6,019,770.90 is: 8,309,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916,456.54 : 12,308,476.50 = 6,019,770.90 : x
  2. Step 2: Convert to fraction form
    8,916,456.54/12,308,476.50 = 6,019,770.90/x
  3. Step 3: Cross multiply
    8,916,456.54x = 12,308,476.50 × 6,019,770.90
  4. Step 4: Simplify right side
    8,916,456.54x = 74,094,208,658,033.86
  5. Step 5: Solve for x
    x = 74,094,208,658,033.86/8,916,456.54
  6. Step 6: Final answer
    x = 8,309,826.70

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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.