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Finding the Fourth Proportional to 52,989.74, 79,472.27 and 19,725.47

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Solution

The fourth proportional to 52,989.74, 79,472.27 and 19,725.47 is: 29,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,989.74 : 79,472.27 = 19,725.47 : x
  2. Step 2: Convert to fraction form
    52,989.74/79,472.27 = 19,725.47/x
  3. Step 3: Cross multiply
    52,989.74x = 79,472.27 × 19,725.47
  4. Step 4: Simplify right side
    52,989.74x = 1,567,627,381.73
  5. Step 5: Solve for x
    x = 1,567,627,381.73/52,989.74
  6. Step 6: Final answer
    x = 29,583.60

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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.