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Finding the Fourth Proportional to 70,736.58, 97,615.44 and 38,903.58

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Solution

The fourth proportional to 70,736.58, 97,615.44 and 38,903.58 is: 53,686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,736.58 : 97,615.44 = 38,903.58 : x
  2. Step 2: Convert to fraction form
    70,736.58/97,615.44 = 38,903.58/x
  3. Step 3: Cross multiply
    70,736.58x = 97,615.44 × 38,903.58
  4. Step 4: Simplify right side
    70,736.58x = 3,797,590,079.28
  5. Step 5: Solve for x
    x = 3,797,590,079.28/70,736.58
  6. Step 6: Final answer
    x = 53,686.37

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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.