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Finding the Fourth Proportional to 58,730.50, 81,048.18 and 33,580.54

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Solution

The fourth proportional to 58,730.50, 81,048.18 and 33,580.54 is: 46,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,730.50 : 81,048.18 = 33,580.54 : x
  2. Step 2: Convert to fraction form
    58,730.50/81,048.18 = 33,580.54/x
  3. Step 3: Cross multiply
    58,730.50x = 81,048.18 × 33,580.54
  4. Step 4: Simplify right side
    58,730.50x = 2,721,641,650.42
  5. Step 5: Solve for x
    x = 2,721,641,650.42/58,730.50
  6. Step 6: Final answer
    x = 46,341.20

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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.