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Finding the Fourth Proportional to 65,161.40, 97,698.30 and 25,698.20

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Solution

The fourth proportional to 65,161.40, 97,698.30 and 25,698.20 is: 38,530.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,161.40 : 97,698.30 = 25,698.20 : x
  2. Step 2: Convert to fraction form
    65,161.40/97,698.30 = 25,698.20/x
  3. Step 3: Cross multiply
    65,161.40x = 97,698.30 × 25,698.20
  4. Step 4: Simplify right side
    65,161.40x = 2,510,670,453.06
  5. Step 5: Solve for x
    x = 2,510,670,453.06/65,161.40
  6. Step 6: Final answer
    x = 38,530.03

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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.