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Finding the Fourth Proportional to 18,671.88, 27,969.54 and 14,953.98

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Solution

The fourth proportional to 18,671.88, 27,969.54 and 14,953.98 is: 22,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.88 : 27,969.54 = 14,953.98 : x
  2. Step 2: Convert to fraction form
    18,671.88/27,969.54 = 14,953.98/x
  3. Step 3: Cross multiply
    18,671.88x = 27,969.54 × 14,953.98
  4. Step 4: Simplify right side
    18,671.88x = 418,255,941.77
  5. Step 5: Solve for x
    x = 418,255,941.77/18,671.88
  6. Step 6: Final answer
    x = 22,400.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.