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Finding the Fourth Proportional to 38,212.68, 52,733.52 and 21,445.68

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Solution

The fourth proportional to 38,212.68, 52,733.52 and 21,445.68 is: 29,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,212.68 : 52,733.52 = 21,445.68 : x
  2. Step 2: Convert to fraction form
    38,212.68/52,733.52 = 21,445.68/x
  3. Step 3: Cross multiply
    38,212.68x = 52,733.52 × 21,445.68
  4. Step 4: Simplify right side
    38,212.68x = 1,130,906,195.19
  5. Step 5: Solve for x
    x = 1,130,906,195.19/38,212.68
  6. Step 6: Final answer
    x = 29,595.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.