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Finding the Fourth Proportional to 32,615.98, 45,010.20 and 18,471.58

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Solution

The fourth proportional to 32,615.98, 45,010.20 and 18,471.58 is: 25,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,615.98 : 45,010.20 = 18,471.58 : x
  2. Step 2: Convert to fraction form
    32,615.98/45,010.20 = 18,471.58/x
  3. Step 3: Cross multiply
    32,615.98x = 45,010.20 × 18,471.58
  4. Step 4: Simplify right side
    32,615.98x = 831,409,510.12
  5. Step 5: Solve for x
    x = 831,409,510.12/32,615.98
  6. Step 6: Final answer
    x = 25,490.86

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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.