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Finding the Fourth Proportional to 61,803.64, 92,631.30 and 28,477.96

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Solution

The fourth proportional to 61,803.64, 92,631.30 and 28,477.96 is: 42,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.64 : 92,631.30 = 28,477.96 : x
  2. Step 2: Convert to fraction form
    61,803.64/92,631.30 = 28,477.96/x
  3. Step 3: Cross multiply
    61,803.64x = 92,631.30 × 28,477.96
  4. Step 4: Simplify right side
    61,803.64x = 2,637,950,456.15
  5. Step 5: Solve for x
    x = 2,637,950,456.15/61,803.64
  6. Step 6: Final answer
    x = 42,682.77

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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.