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Finding the Fourth Proportional to 64,762.96, 97,144.60 and 18,015.84

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Solution

The fourth proportional to 64,762.96, 97,144.60 and 18,015.84 is: 27,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,762.96 : 97,144.60 = 18,015.84 : x
  2. Step 2: Convert to fraction form
    64,762.96/97,144.60 = 18,015.84/x
  3. Step 3: Cross multiply
    64,762.96x = 97,144.60 × 18,015.84
  4. Step 4: Simplify right side
    64,762.96x = 1,750,141,570.46
  5. Step 5: Solve for x
    x = 1,750,141,570.46/64,762.96
  6. Step 6: Final answer
    x = 27,023.80

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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.