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Finding the Fourth Proportional to 51,901.70, 77,852.59 and 37,139.45

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Solution

The fourth proportional to 51,901.70, 77,852.59 and 37,139.45 is: 55,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,901.70 : 77,852.59 = 37,139.45 : x
  2. Step 2: Convert to fraction form
    51,901.70/77,852.59 = 37,139.45/x
  3. Step 3: Cross multiply
    51,901.70x = 77,852.59 × 37,139.45
  4. Step 4: Simplify right side
    51,901.70x = 2,891,401,891.56
  5. Step 5: Solve for x
    x = 2,891,401,891.56/51,901.70
  6. Step 6: Final answer
    x = 55,709.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.