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Finding the Fourth Proportional to 32,762.46, 45,212.92 and 18,615

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Solution

The fourth proportional to 32,762.46, 45,212.92 and 18,615 is: 25,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,762.46 : 45,212.92 = 18,615 : x
  2. Step 2: Convert to fraction form
    32,762.46/45,212.92 = 18,615/x
  3. Step 3: Cross multiply
    32,762.46x = 45,212.92 × 18,615
  4. Step 4: Simplify right side
    32,762.46x = 841,638,505.80
  5. Step 5: Solve for x
    x = 841,638,505.80/32,762.46
  6. Step 6: Final answer
    x = 25,689.11

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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.