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Finding the Fourth Proportional to 58,471.68, 80,690.76 and 33,321.36

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Solution

The fourth proportional to 58,471.68, 80,690.76 and 33,321.36 is: 45,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,471.68 : 80,690.76 = 33,321.36 : x
  2. Step 2: Convert to fraction form
    58,471.68/80,690.76 = 33,321.36/x
  3. Step 3: Cross multiply
    58,471.68x = 80,690.76 × 33,321.36
  4. Step 4: Simplify right side
    58,471.68x = 2,688,725,862.63
  5. Step 5: Solve for x
    x = 2,688,725,862.63/58,471.68
  6. Step 6: Final answer
    x = 45,983.39

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1.5x scale

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.