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Finding the Fourth Proportional to 35,175.86, 48,543.30 and 21,746.78

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Solution

The fourth proportional to 35,175.86, 48,543.30 and 21,746.78 is: 30,010.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,175.86 : 48,543.30 = 21,746.78 : x
  2. Step 2: Convert to fraction form
    35,175.86/48,543.30 = 21,746.78/x
  3. Step 3: Cross multiply
    35,175.86x = 48,543.30 × 21,746.78
  4. Step 4: Simplify right side
    35,175.86x = 1,055,660,465.57
  5. Step 5: Solve for x
    x = 1,055,660,465.57/35,175.86
  6. Step 6: Final answer
    x = 30,010.94

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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.