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Finding the Fourth Proportional to 58,618.02, 80,890.44 and 34,415.64

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Solution

The fourth proportional to 58,618.02, 80,890.44 and 34,415.64 is: 47,492.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,618.02 : 80,890.44 = 34,415.64 : x
  2. Step 2: Convert to fraction form
    58,618.02/80,890.44 = 34,415.64/x
  3. Step 3: Cross multiply
    58,618.02x = 80,890.44 × 34,415.64
  4. Step 4: Simplify right side
    58,618.02x = 2,783,896,262.48
  5. Step 5: Solve for x
    x = 2,783,896,262.48/58,618.02
  6. Step 6: Final answer
    x = 47,492.16

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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.