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Finding the Fourth Proportional to 15,594.53, 21,521.84 and 8,878.68

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Solution

The fourth proportional to 15,594.53, 21,521.84 and 8,878.68 is: 12,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.53 : 21,521.84 = 8,878.68 : x
  2. Step 2: Convert to fraction form
    15,594.53/21,521.84 = 8,878.68/x
  3. Step 3: Cross multiply
    15,594.53x = 21,521.84 × 8,878.68
  4. Step 4: Simplify right side
    15,594.53x = 191,085,485.98
  5. Step 5: Solve for x
    x = 191,085,485.98/15,594.53
  6. Step 6: Final answer
    x = 12,253.37

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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.