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Finding the Fourth Proportional to 60,039.47, 90,048.99 and 20,053.92

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Solution

The fourth proportional to 60,039.47, 90,048.99 and 20,053.92 is: 30,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,039.47 : 90,048.99 = 20,053.92 : x
  2. Step 2: Convert to fraction form
    60,039.47/90,048.99 = 20,053.92/x
  3. Step 3: Cross multiply
    60,039.47x = 90,048.99 × 20,053.92
  4. Step 4: Simplify right side
    60,039.47x = 1,805,835,241.54
  5. Step 5: Solve for x
    x = 1,805,835,241.54/60,039.47
  6. Step 6: Final answer
    x = 30,077.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.