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Finding the Fourth Proportional to 30,659.99, 45,965.18 and 9,589.19

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Solution

The fourth proportional to 30,659.99, 45,965.18 and 9,589.19 is: 14,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.99 : 45,965.18 = 9,589.19 : x
  2. Step 2: Convert to fraction form
    30,659.99/45,965.18 = 9,589.19/x
  3. Step 3: Cross multiply
    30,659.99x = 45,965.18 × 9,589.19
  4. Step 4: Simplify right side
    30,659.99x = 440,768,566.63
  5. Step 5: Solve for x
    x = 440,768,566.63/30,659.99
  6. Step 6: Final answer
    x = 14,376.02

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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.