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Finding the Fourth Proportional to 68,031.70, 93,891.50 and 37,820.01

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Solution

The fourth proportional to 68,031.70, 93,891.50 and 37,820.01 is: 52,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.70 : 93,891.50 = 37,820.01 : x
  2. Step 2: Convert to fraction form
    68,031.70/93,891.50 = 37,820.01/x
  3. Step 3: Cross multiply
    68,031.70x = 93,891.50 × 37,820.01
  4. Step 4: Simplify right side
    68,031.70x = 3,550,977,986.47
  5. Step 5: Solve for x
    x = 3,550,977,986.47/68,031.70
  6. Step 6: Final answer
    x = 52,195.93

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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.