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Finding the Fourth Proportional to 29,541, 40,743.54 and 18,931.62

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Solution

The fourth proportional to 29,541, 40,743.54 and 18,931.62 is: 26,110.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,541 : 40,743.54 = 18,931.62 : x
  2. Step 2: Convert to fraction form
    29,541/40,743.54 = 18,931.62/x
  3. Step 3: Cross multiply
    29,541x = 40,743.54 × 18,931.62
  4. Step 4: Simplify right side
    29,541x = 771,341,216.73
  5. Step 5: Solve for x
    x = 771,341,216.73/29,541
  6. Step 6: Final answer
    x = 26,110.87

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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.