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Finding the Fourth Proportional to 64,691.98, 97,038.40 and 22,571.90

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Solution

The fourth proportional to 64,691.98, 97,038.40 and 22,571.90 is: 33,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,691.98 : 97,038.40 = 22,571.90 : x
  2. Step 2: Convert to fraction form
    64,691.98/97,038.40 = 22,571.90/x
  3. Step 3: Cross multiply
    64,691.98x = 97,038.40 × 22,571.90
  4. Step 4: Simplify right side
    64,691.98x = 2,190,341,060.96
  5. Step 5: Solve for x
    x = 2,190,341,060.96/64,691.98
  6. Step 6: Final answer
    x = 33,858.00

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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.