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Finding the Fourth Proportional to 62,420.60, 93,630.90 and 27,428.60

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Solution

The fourth proportional to 62,420.60, 93,630.90 and 27,428.60 is: 41,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,420.60 : 93,630.90 = 27,428.60 : x
  2. Step 2: Convert to fraction form
    62,420.60/93,630.90 = 27,428.60/x
  3. Step 3: Cross multiply
    62,420.60x = 93,630.90 × 27,428.60
  4. Step 4: Simplify right side
    62,420.60x = 2,568,164,503.74
  5. Step 5: Solve for x
    x = 2,568,164,503.74/62,420.60
  6. Step 6: Final answer
    x = 41,142.90

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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.