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Finding the Fourth Proportional to 70,995.33, 97,970.67 and 39,164.25

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Solution

The fourth proportional to 70,995.33, 97,970.67 and 39,164.25 is: 54,045.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,995.33 : 97,970.67 = 39,164.25 : x
  2. Step 2: Convert to fraction form
    70,995.33/97,970.67 = 39,164.25/x
  3. Step 3: Cross multiply
    70,995.33x = 97,970.67 × 39,164.25
  4. Step 4: Simplify right side
    70,995.33x = 3,836,947,812.55
  5. Step 5: Solve for x
    x = 3,836,947,812.55/70,995.33
  6. Step 6: Final answer
    x = 54,045.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.