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Finding the Fourth Proportional to 66,004.29, 91,085.58 and 35,790.28

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Solution

The fourth proportional to 66,004.29, 91,085.58 and 35,790.28 is: 49,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,004.29 : 91,085.58 = 35,790.28 : x
  2. Step 2: Convert to fraction form
    66,004.29/91,085.58 = 35,790.28/x
  3. Step 3: Cross multiply
    66,004.29x = 91,085.58 × 35,790.28
  4. Step 4: Simplify right side
    66,004.29x = 3,259,978,184.45
  5. Step 5: Solve for x
    x = 3,259,978,184.45/66,004.29
  6. Step 6: Final answer
    x = 49,390.40

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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.