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Finding the Fourth Proportional to 64,316.36, 88,756.98 and 36,021.98

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Solution

The fourth proportional to 64,316.36, 88,756.98 and 36,021.98 is: 49,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,316.36 : 88,756.98 = 36,021.98 : x
  2. Step 2: Convert to fraction form
    64,316.36/88,756.98 = 36,021.98/x
  3. Step 3: Cross multiply
    64,316.36x = 88,756.98 × 36,021.98
  4. Step 4: Simplify right side
    64,316.36x = 3,197,202,158.42
  5. Step 5: Solve for x
    x = 3,197,202,158.42/64,316.36
  6. Step 6: Final answer
    x = 49,710.56

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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.