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Finding the Fourth Proportional to 34,388.99, 47,458.76 and 19,286.49

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Solution

The fourth proportional to 34,388.99, 47,458.76 and 19,286.49 is: 26,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,388.99 : 47,458.76 = 19,286.49 : x
  2. Step 2: Convert to fraction form
    34,388.99/47,458.76 = 19,286.49/x
  3. Step 3: Cross multiply
    34,388.99x = 47,458.76 × 19,286.49
  4. Step 4: Simplify right side
    34,388.99x = 915,312,803.72
  5. Step 5: Solve for x
    x = 915,312,803.72/34,388.99
  6. Step 6: Final answer
    x = 26,616.45

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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.