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Finding the Fourth Proportional to 37,368.80, 56,019.48 and 13,659.80

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Solution

The fourth proportional to 37,368.80, 56,019.48 and 13,659.80 is: 20,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,368.80 : 56,019.48 = 13,659.80 : x
  2. Step 2: Convert to fraction form
    37,368.80/56,019.48 = 13,659.80/x
  3. Step 3: Cross multiply
    37,368.80x = 56,019.48 × 13,659.80
  4. Step 4: Simplify right side
    37,368.80x = 765,214,892.90
  5. Step 5: Solve for x
    x = 765,214,892.90/37,368.80
  6. Step 6: Final answer
    x = 20,477.37

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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.