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Finding the Fourth Proportional to 21,863.16, 32,624.21 and 19,506.96

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Solution

The fourth proportional to 21,863.16, 32,624.21 and 19,506.96 is: 29,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.16 : 32,624.21 = 19,506.96 : x
  2. Step 2: Convert to fraction form
    21,863.16/32,624.21 = 19,506.96/x
  3. Step 3: Cross multiply
    21,863.16x = 32,624.21 × 19,506.96
  4. Step 4: Simplify right side
    21,863.16x = 636,399,159.50
  5. Step 5: Solve for x
    x = 636,399,159.50/21,863.16
  6. Step 6: Final answer
    x = 29,108.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.