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Finding the Fourth Proportional to 7,886,108.40, 11,834,411.40 and 4,474,388.40

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Solution

The fourth proportional to 7,886,108.40, 11,834,411.40 and 4,474,388.40 is: 6,714,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886,108.40 : 11,834,411.40 = 4,474,388.40 : x
  2. Step 2: Convert to fraction form
    7,886,108.40/11,834,411.40 = 4,474,388.40/x
  3. Step 3: Cross multiply
    7,886,108.40x = 11,834,411.40 × 4,474,388.40
  4. Step 4: Simplify right side
    7,886,108.40x = 52,951,753,088,987.77
  5. Step 5: Solve for x
    x = 52,951,753,088,987.77/7,886,108.40
  6. Step 6: Final answer
    x = 6,714,560.64

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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.