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Finding the Fourth Proportional to 58,776.91, 81,113.74 and 34,579.58

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Solution

The fourth proportional to 58,776.91, 81,113.74 and 34,579.58 is: 47,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,776.91 : 81,113.74 = 34,579.58 : x
  2. Step 2: Convert to fraction form
    58,776.91/81,113.74 = 34,579.58/x
  3. Step 3: Cross multiply
    58,776.91x = 81,113.74 × 34,579.58
  4. Step 4: Simplify right side
    58,776.91x = 2,804,878,569.41
  5. Step 5: Solve for x
    x = 2,804,878,569.41/58,776.91
  6. Step 6: Final answer
    x = 47,720.76

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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.