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Finding the Fourth Proportional to 21,865.35, 32,802.90 and 7,073.94

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Solution

The fourth proportional to 21,865.35, 32,802.90 and 7,073.94 is: 10,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.35 : 32,802.90 = 7,073.94 : x
  2. Step 2: Convert to fraction form
    21,865.35/32,802.90 = 7,073.94/x
  3. Step 3: Cross multiply
    21,865.35x = 32,802.90 × 7,073.94
  4. Step 4: Simplify right side
    21,865.35x = 232,045,746.43
  5. Step 5: Solve for x
    x = 232,045,746.43/21,865.35
  6. Step 6: Final answer
    x = 10,612.49

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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.