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Finding the Fourth Proportional to 32,777.87, 45,220.24 and 18,971.11

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Solution

The fourth proportional to 32,777.87, 45,220.24 and 18,971.11 is: 26,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,777.87 : 45,220.24 = 18,971.11 : x
  2. Step 2: Convert to fraction form
    32,777.87/45,220.24 = 18,971.11/x
  3. Step 3: Cross multiply
    32,777.87x = 45,220.24 × 18,971.11
  4. Step 4: Simplify right side
    32,777.87x = 857,878,227.51
  5. Step 5: Solve for x
    x = 857,878,227.51/32,777.87
  6. Step 6: Final answer
    x = 26,172.49

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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.