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Finding the Fourth Proportional to 8,407,906.65, 12,611,860.14 and 2,018,159.01

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Solution

The fourth proportional to 8,407,906.65, 12,611,860.14 and 2,018,159.01 is: 3,027,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407,906.65 : 12,611,860.14 = 2,018,159.01 : x
  2. Step 2: Convert to fraction form
    8,407,906.65/12,611,860.14 = 2,018,159.01/x
  3. Step 3: Cross multiply
    8,407,906.65x = 12,611,860.14 × 2,018,159.01
  4. Step 4: Simplify right side
    8,407,906.65x = 25,452,739,174,400.86
  5. Step 5: Solve for x
    x = 25,452,739,174,400.86/8,407,906.65
  6. Step 6: Final answer
    x = 3,027,238.55

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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.