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Finding the Fourth Proportional to 29,703.56, 40,990.90 and 16,275.32

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Solution

The fourth proportional to 29,703.56, 40,990.90 and 16,275.32 is: 22,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,703.56 : 40,990.90 = 16,275.32 : x
  2. Step 2: Convert to fraction form
    29,703.56/40,990.90 = 16,275.32/x
  3. Step 3: Cross multiply
    29,703.56x = 40,990.90 × 16,275.32
  4. Step 4: Simplify right side
    29,703.56x = 667,140,014.59
  5. Step 5: Solve for x
    x = 667,140,014.59/29,703.56
  6. Step 6: Final answer
    x = 22,459.93

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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.