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Finding the Fourth Proportional to 35,847.86, 49,472.64 and 21,508.31

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Solution

The fourth proportional to 35,847.86, 49,472.64 and 21,508.31 is: 29,683.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,847.86 : 49,472.64 = 21,508.31 : x
  2. Step 2: Convert to fraction form
    35,847.86/49,472.64 = 21,508.31/x
  3. Step 3: Cross multiply
    35,847.86x = 49,472.64 × 21,508.31
  4. Step 4: Simplify right side
    35,847.86x = 1,064,072,630.28
  5. Step 5: Solve for x
    x = 1,064,072,630.28/35,847.86
  6. Step 6: Final answer
    x = 29,683.02

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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.