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Finding the Fourth Proportional to 58,649.70, 80,947.42 and 33,499.20

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Solution

The fourth proportional to 58,649.70, 80,947.42 and 33,499.20 is: 46,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,649.70 : 80,947.42 = 33,499.20 : x
  2. Step 2: Convert to fraction form
    58,649.70/80,947.42 = 33,499.20/x
  3. Step 3: Cross multiply
    58,649.70x = 80,947.42 × 33,499.20
  4. Step 4: Simplify right side
    58,649.70x = 2,711,673,812.06
  5. Step 5: Solve for x
    x = 2,711,673,812.06/58,649.70
  6. Step 6: Final answer
    x = 46,235.08

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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.