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Finding the Fourth Proportional to 8,526,411.54, 12,766,698.97 and 6,494,978.32

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Solution

The fourth proportional to 8,526,411.54, 12,766,698.97 and 6,494,978.32 is: 9,725,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526,411.54 : 12,766,698.97 = 6,494,978.32 : x
  2. Step 2: Convert to fraction form
    8,526,411.54/12,766,698.97 = 6,494,978.32/x
  3. Step 3: Cross multiply
    8,526,411.54x = 12,766,698.97 × 6,494,978.32
  4. Step 4: Simplify right side
    8,526,411.54x = 82,919,432,979,962.12
  5. Step 5: Solve for x
    x = 82,919,432,979,962.12/8,526,411.54
  6. Step 6: Final answer
    x = 9,725,009.47

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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.