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Finding the Fourth Proportional to 21,672.95, 32,506.47 and 5,878.99

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Solution

The fourth proportional to 21,672.95, 32,506.47 and 5,878.99 is: 8,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.95 : 32,506.47 = 5,878.99 : x
  2. Step 2: Convert to fraction form
    21,672.95/32,506.47 = 5,878.99/x
  3. Step 3: Cross multiply
    21,672.95x = 32,506.47 × 5,878.99
  4. Step 4: Simplify right side
    21,672.95x = 191,105,252.70
  5. Step 5: Solve for x
    x = 191,105,252.70/21,672.95
  6. Step 6: Final answer
    x = 8,817.69

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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.