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Finding the Fourth Proportional to 48,086.70, 72,130.41 and 13,026.30

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Solution

The fourth proportional to 48,086.70, 72,130.41 and 13,026.30 is: 19,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,086.70 : 72,130.41 = 13,026.30 : x
  2. Step 2: Convert to fraction form
    48,086.70/72,130.41 = 13,026.30/x
  3. Step 3: Cross multiply
    48,086.70x = 72,130.41 × 13,026.30
  4. Step 4: Simplify right side
    48,086.70x = 939,592,359.78
  5. Step 5: Solve for x
    x = 939,592,359.78/48,086.70
  6. Step 6: Final answer
    x = 19,539.55

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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.