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Finding the Fourth Proportional to 70,086.90, 105,130.35 and 33,222.90

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Solution

The fourth proportional to 70,086.90, 105,130.35 and 33,222.90 is: 49,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,086.90 : 105,130.35 = 33,222.90 : x
  2. Step 2: Convert to fraction form
    70,086.90/105,130.35 = 33,222.90/x
  3. Step 3: Cross multiply
    70,086.90x = 105,130.35 × 33,222.90
  4. Step 4: Simplify right side
    70,086.90x = 3,492,735,105.02
  5. Step 5: Solve for x
    x = 3,492,735,105.02/70,086.90
  6. Step 6: Final answer
    x = 49,834.35

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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.