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Finding the Fourth Proportional to 30,451.66, 45,685.35 and 9,391.22

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Solution

The fourth proportional to 30,451.66, 45,685.35 and 9,391.22 is: 14,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.66 : 45,685.35 = 9,391.22 : x
  2. Step 2: Convert to fraction form
    30,451.66/45,685.35 = 9,391.22/x
  3. Step 3: Cross multiply
    30,451.66x = 45,685.35 × 9,391.22
  4. Step 4: Simplify right side
    30,451.66x = 429,041,286.84
  5. Step 5: Solve for x
    x = 429,041,286.84/30,451.66
  6. Step 6: Final answer
    x = 14,089.26

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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.