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Finding the Fourth Proportional to 64,985.70, 97,485.03 and 23,422.98

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Solution

The fourth proportional to 64,985.70, 97,485.03 and 23,422.98 is: 35,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,985.70 : 97,485.03 = 23,422.98 : x
  2. Step 2: Convert to fraction form
    64,985.70/97,485.03 = 23,422.98/x
  3. Step 3: Cross multiply
    64,985.70x = 97,485.03 × 23,422.98
  4. Step 4: Simplify right side
    64,985.70x = 2,283,389,907.99
  5. Step 5: Solve for x
    x = 2,283,389,907.99/64,985.70
  6. Step 6: Final answer
    x = 35,136.81

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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.