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Finding the Fourth Proportional to 29,392.21, 40,537.78 and 19,330.98

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Solution

The fourth proportional to 29,392.21, 40,537.78 and 19,330.98 is: 26,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,392.21 : 40,537.78 = 19,330.98 : x
  2. Step 2: Convert to fraction form
    29,392.21/40,537.78 = 19,330.98/x
  3. Step 3: Cross multiply
    29,392.21x = 40,537.78 × 19,330.98
  4. Step 4: Simplify right side
    29,392.21x = 783,635,014.42
  5. Step 5: Solve for x
    x = 783,635,014.42/29,392.21
  6. Step 6: Final answer
    x = 26,661.32

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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.