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Finding the Fourth Proportional to 70,611.78, 97,507.50 and 52,675.62

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Solution

The fourth proportional to 70,611.78, 97,507.50 and 52,675.62 is: 72,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,611.78 : 97,507.50 = 52,675.62 : x
  2. Step 2: Convert to fraction form
    70,611.78/97,507.50 = 52,675.62/x
  3. Step 3: Cross multiply
    70,611.78x = 97,507.50 × 52,675.62
  4. Step 4: Simplify right side
    70,611.78x = 5,136,268,017.15
  5. Step 5: Solve for x
    x = 5,136,268,017.15/70,611.78
  6. Step 6: Final answer
    x = 72,739.53

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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.