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Finding the Fourth Proportional to 66,200.40, 91,429.56 and 44,942.40

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Solution

The fourth proportional to 66,200.40, 91,429.56 and 44,942.40 is: 62,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.40 : 91,429.56 = 44,942.40 : x
  2. Step 2: Convert to fraction form
    66,200.40/91,429.56 = 44,942.40/x
  3. Step 3: Cross multiply
    66,200.40x = 91,429.56 × 44,942.40
  4. Step 4: Simplify right side
    66,200.40x = 4,109,063,857.34
  5. Step 5: Solve for x
    x = 4,109,063,857.34/66,200.40
  6. Step 6: Final answer
    x = 62,070.08

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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.