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Finding the Fourth Proportional to 34,894.70, 48,134.18 and 21,953.39

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Solution

The fourth proportional to 34,894.70, 48,134.18 and 21,953.39 is: 30,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,894.70 : 48,134.18 = 21,953.39 : x
  2. Step 2: Convert to fraction form
    34,894.70/48,134.18 = 21,953.39/x
  3. Step 3: Cross multiply
    34,894.70x = 48,134.18 × 21,953.39
  4. Step 4: Simplify right side
    34,894.70x = 1,056,708,075.43
  5. Step 5: Solve for x
    x = 1,056,708,075.43/34,894.70
  6. Step 6: Final answer
    x = 30,282.77

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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.