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Finding the Fourth Proportional to 37,798.40, 52,161.72 and 21,031.40

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Solution

The fourth proportional to 37,798.40, 52,161.72 and 21,031.40 is: 29,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,798.40 : 52,161.72 = 21,031.40 : x
  2. Step 2: Convert to fraction form
    37,798.40/52,161.72 = 21,031.40/x
  3. Step 3: Cross multiply
    37,798.40x = 52,161.72 × 21,031.40
  4. Step 4: Simplify right side
    37,798.40x = 1,097,033,998.01
  5. Step 5: Solve for x
    x = 1,097,033,998.01/37,798.40
  6. Step 6: Final answer
    x = 29,023.29

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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.