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Finding the Fourth Proportional to 62,621.97, 86,415.21 and 35,397.45

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Solution

The fourth proportional to 62,621.97, 86,415.21 and 35,397.45 is: 48,846.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,621.97 : 86,415.21 = 35,397.45 : x
  2. Step 2: Convert to fraction form
    62,621.97/86,415.21 = 35,397.45/x
  3. Step 3: Cross multiply
    62,621.97x = 86,415.21 × 35,397.45
  4. Step 4: Simplify right side
    62,621.97x = 3,058,878,075.21
  5. Step 5: Solve for x
    x = 3,058,878,075.21/62,621.97
  6. Step 6: Final answer
    x = 48,846.72

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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.