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Finding the Third Proportional to 19,239.75 and 28,915.88

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Solution

The third proportional to 19,239.75 and 28,915.88 is: 43,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.75 : 28,915.88 = 28,915.88 : x
  2. Step 2: Convert to fraction form
    19,239.75/28,915.88 = 28,915.88/x
  3. Step 3: Cross multiply
    19,239.75x = 28,915.88 × 28,915.88
  4. Step 4: Simplify right side
    19,239.75x = 836,127,827.02
  5. Step 5: Solve for x
    x = 836,127,827.02/19,239.75
  6. Step 6: Final answer
    x = 43,458.35

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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.