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Finding the Fourth Proportional to 62,111.20, 93,166.80 and 20,558.20

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Solution

The fourth proportional to 62,111.20, 93,166.80 and 20,558.20 is: 30,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,111.20 : 93,166.80 = 20,558.20 : x
  2. Step 2: Convert to fraction form
    62,111.20/93,166.80 = 20,558.20/x
  3. Step 3: Cross multiply
    62,111.20x = 93,166.80 × 20,558.20
  4. Step 4: Simplify right side
    62,111.20x = 1,915,341,707.76
  5. Step 5: Solve for x
    x = 1,915,341,707.76/62,111.20
  6. Step 6: Final answer
    x = 30,837.30

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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.