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Finding the Fourth Proportional to 62,386.60, 93,570 and 20,267.68

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Solution

The fourth proportional to 62,386.60, 93,570 and 20,267.68 is: 30,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,386.60 : 93,570 = 20,267.68 : x
  2. Step 2: Convert to fraction form
    62,386.60/93,570 = 20,267.68/x
  3. Step 3: Cross multiply
    62,386.60x = 93,570 × 20,267.68
  4. Step 4: Simplify right side
    62,386.60x = 1,896,446,817.60
  5. Step 5: Solve for x
    x = 1,896,446,817.60/62,386.60
  6. Step 6: Final answer
    x = 30,398.30

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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.