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Finding the Fourth Proportional to 70,895.52, 105,951.58 and 66,798.54

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Solution

The fourth proportional to 70,895.52, 105,951.58 and 66,798.54 is: 99,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,895.52 : 105,951.58 = 66,798.54 : x
  2. Step 2: Convert to fraction form
    70,895.52/105,951.58 = 66,798.54/x
  3. Step 3: Cross multiply
    70,895.52x = 105,951.58 × 66,798.54
  4. Step 4: Simplify right side
    70,895.52x = 7,077,410,687.70
  5. Step 5: Solve for x
    x = 7,077,410,687.70/70,895.52
  6. Step 6: Final answer
    x = 99,828.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.