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Finding the Fourth Proportional to 70,955.40, 97,922.85 and 39,124.24

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Solution

The fourth proportional to 70,955.40, 97,922.85 and 39,124.24 is: 53,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,955.40 : 97,922.85 = 39,124.24 : x
  2. Step 2: Convert to fraction form
    70,955.40/97,922.85 = 39,124.24/x
  3. Step 3: Cross multiply
    70,955.40x = 97,922.85 × 39,124.24
  4. Step 4: Simplify right side
    70,955.40x = 3,831,157,084.88
  5. Step 5: Solve for x
    x = 3,831,157,084.88/70,955.40
  6. Step 6: Final answer
    x = 53,993.88

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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.