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Finding the Fourth Proportional to 21,349.76, 32,024.64 and 10,954.88

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Solution

The fourth proportional to 21,349.76, 32,024.64 and 10,954.88 is: 16,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.76 : 32,024.64 = 10,954.88 : x
  2. Step 2: Convert to fraction form
    21,349.76/32,024.64 = 10,954.88/x
  3. Step 3: Cross multiply
    21,349.76x = 32,024.64 × 10,954.88
  4. Step 4: Simplify right side
    21,349.76x = 350,826,088.24
  5. Step 5: Solve for x
    x = 350,826,088.24/21,349.76
  6. Step 6: Final answer
    x = 16,432.32

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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.