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Finding the Fourth Proportional to 33,859, 46,714.62 and 21,931.48

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Solution

The fourth proportional to 33,859, 46,714.62 and 21,931.48 is: 30,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,859 : 46,714.62 = 21,931.48 : x
  2. Step 2: Convert to fraction form
    33,859/46,714.62 = 21,931.48/x
  3. Step 3: Cross multiply
    33,859x = 46,714.62 × 21,931.48
  4. Step 4: Simplify right side
    33,859x = 1,024,520,754.24
  5. Step 5: Solve for x
    x = 1,024,520,754.24/33,859
  6. Step 6: Final answer
    x = 30,258.45

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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.