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Finding the Fourth Proportional to 36,698.45, 50,643.57 and 19,931.45

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Solution

The fourth proportional to 36,698.45, 50,643.57 and 19,931.45 is: 27,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,698.45 : 50,643.57 = 19,931.45 : x
  2. Step 2: Convert to fraction form
    36,698.45/50,643.57 = 19,931.45/x
  3. Step 3: Cross multiply
    36,698.45x = 50,643.57 × 19,931.45
  4. Step 4: Simplify right side
    36,698.45x = 1,009,399,530.06
  5. Step 5: Solve for x
    x = 1,009,399,530.06/36,698.45
  6. Step 6: Final answer
    x = 27,505.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.