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Finding the Fourth Proportional to 30,239.68, 45,359.46 and 8,053.06

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Solution

The fourth proportional to 30,239.68, 45,359.46 and 8,053.06 is: 12,079.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.68 : 45,359.46 = 8,053.06 : x
  2. Step 2: Convert to fraction form
    30,239.68/45,359.46 = 8,053.06/x
  3. Step 3: Cross multiply
    30,239.68x = 45,359.46 × 8,053.06
  4. Step 4: Simplify right side
    30,239.68x = 365,282,452.95
  5. Step 5: Solve for x
    x = 365,282,452.95/30,239.68
  6. Step 6: Final answer
    x = 12,079.57

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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.