Home / 65,641.01-90,580.61-38,777.09

Finding the Fourth Proportional to 65,641.01, 90,580.61 and 38,777.09

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Solution

The fourth proportional to 65,641.01, 90,580.61 and 38,777.09 is: 53,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,641.01 : 90,580.61 = 38,777.09 : x
  2. Step 2: Convert to fraction form
    65,641.01/90,580.61 = 38,777.09/x
  3. Step 3: Cross multiply
    65,641.01x = 90,580.61 × 38,777.09
  4. Step 4: Simplify right side
    65,641.01x = 3,512,452,272.34
  5. Step 5: Solve for x
    x = 3,512,452,272.34/65,641.01
  6. Step 6: Final answer
    x = 53,510.03

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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.