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Finding the Fourth Proportional to 66,160.94, 91,302.21 and 35,946.05

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Solution

The fourth proportional to 66,160.94, 91,302.21 and 35,946.05 is: 49,605.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.94 : 91,302.21 = 35,946.05 : x
  2. Step 2: Convert to fraction form
    66,160.94/91,302.21 = 35,946.05/x
  3. Step 3: Cross multiply
    66,160.94x = 91,302.21 × 35,946.05
  4. Step 4: Simplify right side
    66,160.94x = 3,281,953,349.26
  5. Step 5: Solve for x
    x = 3,281,953,349.26/66,160.94
  6. Step 6: Final answer
    x = 49,605.61

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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.