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Finding the Fourth Proportional to 70,440.84, 105,661.68 and 17,850.48

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Solution

The fourth proportional to 70,440.84, 105,661.68 and 17,850.48 is: 26,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,440.84 : 105,661.68 = 17,850.48 : x
  2. Step 2: Convert to fraction form
    70,440.84/105,661.68 = 17,850.48/x
  3. Step 3: Cross multiply
    70,440.84x = 105,661.68 × 17,850.48
  4. Step 4: Simplify right side
    70,440.84x = 1,886,111,705.61
  5. Step 5: Solve for x
    x = 1,886,111,705.61/70,440.84
  6. Step 6: Final answer
    x = 26,775.83

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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.