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Finding the Fourth Proportional to 64,965.29, 97,486.80 and 28,029.29

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Solution

The fourth proportional to 64,965.29, 97,486.80 and 28,029.29 is: 42,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.29 : 97,486.80 = 28,029.29 : x
  2. Step 2: Convert to fraction form
    64,965.29/97,486.80 = 28,029.29/x
  3. Step 3: Cross multiply
    64,965.29x = 97,486.80 × 28,029.29
  4. Step 4: Simplify right side
    64,965.29x = 2,732,485,300.94
  5. Step 5: Solve for x
    x = 2,732,485,300.94/64,965.29
  6. Step 6: Final answer
    x = 42,060.70

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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.