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Finding the Fourth Proportional to 36,015.77, 54,023.63 and 9,720.50

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Solution

The fourth proportional to 36,015.77, 54,023.63 and 9,720.50 is: 14,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,015.77 : 54,023.63 = 9,720.50 : x
  2. Step 2: Convert to fraction form
    36,015.77/54,023.63 = 9,720.50/x
  3. Step 3: Cross multiply
    36,015.77x = 54,023.63 × 9,720.50
  4. Step 4: Simplify right side
    36,015.77x = 525,136,376.69
  5. Step 5: Solve for x
    x = 525,136,376.69/36,015.77
  6. Step 6: Final answer
    x = 14,580.73

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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.