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Finding the Fourth Proportional to 21,953.60, 30,322.08 and 17,492.48

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Solution

The fourth proportional to 21,953.60, 30,322.08 and 17,492.48 is: 24,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.60 : 30,322.08 = 17,492.48 : x
  2. Step 2: Convert to fraction form
    21,953.60/30,322.08 = 17,492.48/x
  3. Step 3: Cross multiply
    21,953.60x = 30,322.08 × 17,492.48
  4. Step 4: Simplify right side
    21,953.60x = 530,408,377.96
  5. Step 5: Solve for x
    x = 530,408,377.96/21,953.60
  6. Step 6: Final answer
    x = 24,160.43

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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.