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Finding the Fourth Proportional to 8,869,889.84, 12,239,714.85 and 5,003,361.32

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Solution

The fourth proportional to 8,869,889.84, 12,239,714.85 and 5,003,361.32 is: 6,904,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,889.84 : 12,239,714.85 = 5,003,361.32 : x
  2. Step 2: Convert to fraction form
    8,869,889.84/12,239,714.85 = 5,003,361.32/x
  3. Step 3: Cross multiply
    8,869,889.84x = 12,239,714.85 × 5,003,361.32
  4. Step 4: Simplify right side
    8,869,889.84x = 61,239,715,848,319.60
  5. Step 5: Solve for x
    x = 61,239,715,848,319.60/8,869,889.84
  6. Step 6: Final answer
    x = 6,904,225.08

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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.