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Finding the Fourth Proportional to 8,319,904.10, 12,456,236.55 and 8,319,904.10

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Solution

The fourth proportional to 8,319,904.10, 12,456,236.55 and 8,319,904.10 is: 12,456,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,904.10 : 12,456,236.55 = 8,319,904.10 : x
  2. Step 2: Convert to fraction form
    8,319,904.10/12,456,236.55 = 8,319,904.10/x
  3. Step 3: Cross multiply
    8,319,904.10x = 12,456,236.55 × 8,319,904.10
  4. Step 4: Simplify right side
    8,319,904.10x = 103,634,693,542,914.86
  5. Step 5: Solve for x
    x = 103,634,693,542,914.86/8,319,904.10
  6. Step 6: Final answer
    x = 12,456,236.55

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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.