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Finding the Fourth Proportional to 50,867.99, 70,198.65 and 28,207.94

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Solution

The fourth proportional to 50,867.99, 70,198.65 and 28,207.94 is: 38,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,867.99 : 70,198.65 = 28,207.94 : x
  2. Step 2: Convert to fraction form
    50,867.99/70,198.65 = 28,207.94/x
  3. Step 3: Cross multiply
    50,867.99x = 70,198.65 × 28,207.94
  4. Step 4: Simplify right side
    50,867.99x = 1,980,159,307.28
  5. Step 5: Solve for x
    x = 1,980,159,307.28/50,867.99
  6. Step 6: Final answer
    x = 38,927.41

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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.