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Finding the Fourth Proportional to 18,964,477.92, 26,170,978.86 and 10,262,650.44

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Solution

The fourth proportional to 18,964,477.92, 26,170,978.86 and 10,262,650.44 is: 14,162,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964,477.92 : 26,170,978.86 = 10,262,650.44 : x
  2. Step 2: Convert to fraction form
    18,964,477.92/26,170,978.86 = 10,262,650.44/x
  3. Step 3: Cross multiply
    18,964,477.92x = 26,170,978.86 × 10,262,650.44
  4. Step 4: Simplify right side
    18,964,477.92x = 268,583,607,712,809.69
  5. Step 5: Solve for x
    x = 268,583,607,712,809.69/18,964,477.92
  6. Step 6: Final answer
    x = 14,162,457.24

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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.