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Finding the Fourth Proportional to 62,820.30, 94,230.45 and 20,700.30

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Solution

The fourth proportional to 62,820.30, 94,230.45 and 20,700.30 is: 31,050.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,820.30 : 94,230.45 = 20,700.30 : x
  2. Step 2: Convert to fraction form
    62,820.30/94,230.45 = 20,700.30/x
  3. Step 3: Cross multiply
    62,820.30x = 94,230.45 × 20,700.30
  4. Step 4: Simplify right side
    62,820.30x = 1,950,598,584.14
  5. Step 5: Solve for x
    x = 1,950,598,584.14/62,820.30
  6. Step 6: Final answer
    x = 31,050.45

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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.