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Finding the Fourth Proportional to 65,293.94, 90,149.60 and 40,801.93

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Solution

The fourth proportional to 65,293.94, 90,149.60 and 40,801.93 is: 56,334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,293.94 : 90,149.60 = 40,801.93 : x
  2. Step 2: Convert to fraction form
    65,293.94/90,149.60 = 40,801.93/x
  3. Step 3: Cross multiply
    65,293.94x = 90,149.60 × 40,801.93
  4. Step 4: Simplify right side
    65,293.94x = 3,678,277,668.73
  5. Step 5: Solve for x
    x = 3,678,277,668.73/65,293.94
  6. Step 6: Final answer
    x = 56,334.14

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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.