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Finding the Fourth Proportional to 65,725.31, 90,700.93 and 37,433.63

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Solution

The fourth proportional to 65,725.31, 90,700.93 and 37,433.63 is: 51,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,725.31 : 90,700.93 = 37,433.63 : x
  2. Step 2: Convert to fraction form
    65,725.31/90,700.93 = 37,433.63/x
  3. Step 3: Cross multiply
    65,725.31x = 90,700.93 × 37,433.63
  4. Step 4: Simplify right side
    65,725.31x = 3,395,265,327.82
  5. Step 5: Solve for x
    x = 3,395,265,327.82/65,725.31
  6. Step 6: Final answer
    x = 51,658.41

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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.