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Finding the Fourth Proportional to 29,254.50, 40,378.41 and 16,686.54

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Solution

The fourth proportional to 29,254.50, 40,378.41 and 16,686.54 is: 23,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,254.50 : 40,378.41 = 16,686.54 : x
  2. Step 2: Convert to fraction form
    29,254.50/40,378.41 = 16,686.54/x
  3. Step 3: Cross multiply
    29,254.50x = 40,378.41 × 16,686.54
  4. Step 4: Simplify right side
    29,254.50x = 673,775,953.60
  5. Step 5: Solve for x
    x = 673,775,953.60/29,254.50
  6. Step 6: Final answer
    x = 23,031.53

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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.