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Finding the Fourth Proportional to 35,129.68, 48,477.96 and 19,213.79

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Solution

The fourth proportional to 35,129.68, 48,477.96 and 19,213.79 is: 26,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,129.68 : 48,477.96 = 19,213.79 : x
  2. Step 2: Convert to fraction form
    35,129.68/48,477.96 = 19,213.79/x
  3. Step 3: Cross multiply
    35,129.68x = 48,477.96 × 19,213.79
  4. Step 4: Simplify right side
    35,129.68x = 931,445,100.68
  5. Step 5: Solve for x
    x = 931,445,100.68/35,129.68
  6. Step 6: Final answer
    x = 26,514.48

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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.