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Finding the Fourth Proportional to 21,392.64, 32,094.22 and 7,352.88

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Solution

The fourth proportional to 21,392.64, 32,094.22 and 7,352.88 is: 11,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.64 : 32,094.22 = 7,352.88 : x
  2. Step 2: Convert to fraction form
    21,392.64/32,094.22 = 7,352.88/x
  3. Step 3: Cross multiply
    21,392.64x = 32,094.22 × 7,352.88
  4. Step 4: Simplify right side
    21,392.64x = 235,984,948.35
  5. Step 5: Solve for x
    x = 235,984,948.35/21,392.64
  6. Step 6: Final answer
    x = 11,031.13

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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.