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Finding the Fourth Proportional to 64,047.70, 88,382.16 and 35,755.18

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Solution

The fourth proportional to 64,047.70, 88,382.16 and 35,755.18 is: 49,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,047.70 : 88,382.16 = 35,755.18 : x
  2. Step 2: Convert to fraction form
    64,047.70/88,382.16 = 35,755.18/x
  3. Step 3: Cross multiply
    64,047.70x = 88,382.16 × 35,755.18
  4. Step 4: Simplify right side
    64,047.70x = 3,160,120,039.59
  5. Step 5: Solve for x
    x = 3,160,120,039.59/64,047.70
  6. Step 6: Final answer
    x = 49,340.10

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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.