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Finding the Fourth Proportional to 14,411.88, 19,888.60 and 8,822.88

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Solution

The fourth proportional to 14,411.88, 19,888.60 and 8,822.88 is: 12,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.88 : 19,888.60 = 8,822.88 : x
  2. Step 2: Convert to fraction form
    14,411.88/19,888.60 = 8,822.88/x
  3. Step 3: Cross multiply
    14,411.88x = 19,888.60 × 8,822.88
  4. Step 4: Simplify right side
    14,411.88x = 175,474,731.17
  5. Step 5: Solve for x
    x = 175,474,731.17/14,411.88
  6. Step 6: Final answer
    x = 12,175.70

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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.