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Finding the Fourth Proportional to 65,641.51, 90,584.49 and 37,347.13

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Solution

The fourth proportional to 65,641.51, 90,584.49 and 37,347.13 is: 51,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,641.51 : 90,584.49 = 37,347.13 : x
  2. Step 2: Convert to fraction form
    65,641.51/90,584.49 = 37,347.13/x
  3. Step 3: Cross multiply
    65,641.51x = 90,584.49 × 37,347.13
  4. Step 4: Simplify right side
    65,641.51x = 3,383,070,724.01
  5. Step 5: Solve for x
    x = 3,383,070,724.01/65,641.51
  6. Step 6: Final answer
    x = 51,538.59

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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.