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Finding the Fourth Proportional to 63,125.40, 94,709.70 and 28,090.20

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Solution

The fourth proportional to 63,125.40, 94,709.70 and 28,090.20 is: 42,144.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,125.40 : 94,709.70 = 28,090.20 : x
  2. Step 2: Convert to fraction form
    63,125.40/94,709.70 = 28,090.20/x
  3. Step 3: Cross multiply
    63,125.40x = 94,709.70 × 28,090.20
  4. Step 4: Simplify right side
    63,125.40x = 2,660,414,414.94
  5. Step 5: Solve for x
    x = 2,660,414,414.94/63,125.40
  6. Step 6: Final answer
    x = 42,144.91

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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.