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Finding the Fourth Proportional to 62,628.93, 93,940.03 and 20,503.66

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Solution

The fourth proportional to 62,628.93, 93,940.03 and 20,503.66 is: 30,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,628.93 : 93,940.03 = 20,503.66 : x
  2. Step 2: Convert to fraction form
    62,628.93/93,940.03 = 20,503.66/x
  3. Step 3: Cross multiply
    62,628.93x = 93,940.03 × 20,503.66
  4. Step 4: Simplify right side
    62,628.93x = 1,926,114,435.51
  5. Step 5: Solve for x
    x = 1,926,114,435.51/62,628.93
  6. Step 6: Final answer
    x = 30,754.39

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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.