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Finding the Fourth Proportional to 29,000.58, 40,040.34 and 18,115.32

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Solution

The fourth proportional to 29,000.58, 40,040.34 and 18,115.32 is: 25,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,000.58 : 40,040.34 = 18,115.32 : x
  2. Step 2: Convert to fraction form
    29,000.58/40,040.34 = 18,115.32/x
  3. Step 3: Cross multiply
    29,000.58x = 40,040.34 × 18,115.32
  4. Step 4: Simplify right side
    29,000.58x = 725,343,572.01
  5. Step 5: Solve for x
    x = 725,343,572.01/29,000.58
  6. Step 6: Final answer
    x = 25,011.35

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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.