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Finding the Fourth Proportional to 65,476.07, 90,356.98 and 35,668.07

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Solution

The fourth proportional to 65,476.07, 90,356.98 and 35,668.07 is: 49,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,476.07 : 90,356.98 = 35,668.07 : x
  2. Step 2: Convert to fraction form
    65,476.07/90,356.98 = 35,668.07/x
  3. Step 3: Cross multiply
    65,476.07x = 90,356.98 × 35,668.07
  4. Step 4: Simplify right side
    65,476.07x = 3,222,858,635.84
  5. Step 5: Solve for x
    x = 3,222,858,635.84/65,476.07
  6. Step 6: Final answer
    x = 49,221.94

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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.