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Finding the Fourth Proportional to 64,710.72, 97,075.62 and 33,138.62

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Solution

The fourth proportional to 64,710.72, 97,075.62 and 33,138.62 is: 49,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710.72 : 97,075.62 = 33,138.62 : x
  2. Step 2: Convert to fraction form
    64,710.72/97,075.62 = 33,138.62/x
  3. Step 3: Cross multiply
    64,710.72x = 97,075.62 × 33,138.62
  4. Step 4: Simplify right side
    64,710.72x = 3,216,952,082.44
  5. Step 5: Solve for x
    x = 3,216,952,082.44/64,710.72
  6. Step 6: Final answer
    x = 49,712.82

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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.