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Finding the Fourth Proportional to 21,483.66, 32,274.90 and 15,258.82

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Solution

The fourth proportional to 21,483.66, 32,274.90 and 15,258.82 is: 22,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.66 : 32,274.90 = 15,258.82 : x
  2. Step 2: Convert to fraction form
    21,483.66/32,274.90 = 15,258.82/x
  3. Step 3: Cross multiply
    21,483.66x = 32,274.90 × 15,258.82
  4. Step 4: Simplify right side
    21,483.66x = 492,476,889.62
  5. Step 5: Solve for x
    x = 492,476,889.62/21,483.66
  6. Step 6: Final answer
    x = 22,923.32

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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.