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Finding the Fourth Proportional to 64,018.85, 96,028.27 and 21,899.32

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Solution

The fourth proportional to 64,018.85, 96,028.27 and 21,899.32 is: 32,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,018.85 : 96,028.27 = 21,899.32 : x
  2. Step 2: Convert to fraction form
    64,018.85/96,028.27 = 21,899.32/x
  3. Step 3: Cross multiply
    64,018.85x = 96,028.27 × 21,899.32
  4. Step 4: Simplify right side
    64,018.85x = 2,102,953,518.96
  5. Step 5: Solve for x
    x = 2,102,953,518.96/64,018.85
  6. Step 6: Final answer
    x = 32,848.98

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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.