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Finding the Fourth Proportional to 65,370.36, 90,208.44 and 37,075.44

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Solution

The fourth proportional to 65,370.36, 90,208.44 and 37,075.44 is: 51,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,370.36 : 90,208.44 = 37,075.44 : x
  2. Step 2: Convert to fraction form
    65,370.36/90,208.44 = 37,075.44/x
  3. Step 3: Cross multiply
    65,370.36x = 90,208.44 × 37,075.44
  4. Step 4: Simplify right side
    65,370.36x = 3,344,517,604.71
  5. Step 5: Solve for x
    x = 3,344,517,604.71/65,370.36
  6. Step 6: Final answer
    x = 51,162.60

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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.