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Finding the Fourth Proportional to 30,797.99, 42,224.14 and 30,237.47

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Solution

The fourth proportional to 30,797.99, 42,224.14 and 30,237.47 is: 41,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797.99 : 42,224.14 = 30,237.47 : x
  2. Step 2: Convert to fraction form
    30,797.99/42,224.14 = 30,237.47/x
  3. Step 3: Cross multiply
    30,797.99x = 42,224.14 × 30,237.47
  4. Step 4: Simplify right side
    30,797.99x = 1,276,751,015.34
  5. Step 5: Solve for x
    x = 1,276,751,015.34/30,797.99
  6. Step 6: Final answer
    x = 41,455.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.