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Finding the Fourth Proportional to 52,504.94, 78,422.73 and 47,499.66

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Solution

The fourth proportional to 52,504.94, 78,422.73 and 47,499.66 is: 70,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,504.94 : 78,422.73 = 47,499.66 : x
  2. Step 2: Convert to fraction form
    52,504.94/78,422.73 = 47,499.66/x
  3. Step 3: Cross multiply
    52,504.94x = 78,422.73 × 47,499.66
  4. Step 4: Simplify right side
    52,504.94x = 3,725,053,011.27
  5. Step 5: Solve for x
    x = 3,725,053,011.27/52,504.94
  6. Step 6: Final answer
    x = 70,946.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.