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Finding the Fourth Proportional to 62,697.88, 93,980.70 and 20,566.96

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Solution

The fourth proportional to 62,697.88, 93,980.70 and 20,566.96 is: 30,828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,697.88 : 93,980.70 = 20,566.96 : x
  2. Step 2: Convert to fraction form
    62,697.88/93,980.70 = 20,566.96/x
  3. Step 3: Cross multiply
    62,697.88x = 93,980.70 × 20,566.96
  4. Step 4: Simplify right side
    62,697.88x = 1,932,897,297.67
  5. Step 5: Solve for x
    x = 1,932,897,297.67/62,697.88
  6. Step 6: Final answer
    x = 30,828.75

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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.