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Finding the Fourth Proportional to 66,126.71, 91,254.99 and 35,911.68

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Solution

The fourth proportional to 66,126.71, 91,254.99 and 35,911.68 is: 49,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,126.71 : 91,254.99 = 35,911.68 : x
  2. Step 2: Convert to fraction form
    66,126.71/91,254.99 = 35,911.68/x
  3. Step 3: Cross multiply
    66,126.71x = 91,254.99 × 35,911.68
  4. Step 4: Simplify right side
    66,126.71x = 3,277,119,999.28
  5. Step 5: Solve for x
    x = 3,277,119,999.28/66,126.71
  6. Step 6: Final answer
    x = 49,558.19

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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.