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Finding the Fourth Proportional to 14,018,644.92, 19,340,978.22 and 11,435,860.92

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Solution

The fourth proportional to 14,018,644.92, 19,340,978.22 and 11,435,860.92 is: 15,777,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018,644.92 : 19,340,978.22 = 11,435,860.92 : x
  2. Step 2: Convert to fraction form
    14,018,644.92/19,340,978.22 = 11,435,860.92/x
  3. Step 3: Cross multiply
    14,018,644.92x = 19,340,978.22 × 11,435,860.92
  4. Step 4: Simplify right side
    14,018,644.92x = 221,180,736,980,669.16
  5. Step 5: Solve for x
    x = 221,180,736,980,669.16/14,018,644.92
  6. Step 6: Final answer
    x = 15,777,611.76

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1.5x scale

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.