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Finding the Fourth Proportional to 70,535.94, 105,772.65 and 33,065.76

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Solution

The fourth proportional to 70,535.94, 105,772.65 and 33,065.76 is: 49,583.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,535.94 : 105,772.65 = 33,065.76 : x
  2. Step 2: Convert to fraction form
    70,535.94/105,772.65 = 33,065.76/x
  3. Step 3: Cross multiply
    70,535.94x = 105,772.65 × 33,065.76
  4. Step 4: Simplify right side
    70,535.94x = 3,497,453,059.46
  5. Step 5: Solve for x
    x = 3,497,453,059.46/70,535.94
  6. Step 6: Final answer
    x = 49,583.99

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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.