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Finding the Fourth Proportional to 70,880.56, 106,283.94 and 33,430.58

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Solution

The fourth proportional to 70,880.56, 106,283.94 and 33,430.58 is: 50,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.56 : 106,283.94 = 33,430.58 : x
  2. Step 2: Convert to fraction form
    70,880.56/106,283.94 = 33,430.58/x
  3. Step 3: Cross multiply
    70,880.56x = 106,283.94 × 33,430.58
  4. Step 4: Simplify right side
    70,880.56x = 3,553,133,758.89
  5. Step 5: Solve for x
    x = 3,553,133,758.89/70,880.56
  6. Step 6: Final answer
    x = 50,128.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.