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Finding the Fourth Proportional to 70,369.56, 97,109.28 and 38,538.32

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Solution

The fourth proportional to 70,369.56, 97,109.28 and 38,538.32 is: 53,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,369.56 : 97,109.28 = 38,538.32 : x
  2. Step 2: Convert to fraction form
    70,369.56/97,109.28 = 38,538.32/x
  3. Step 3: Cross multiply
    70,369.56x = 97,109.28 × 38,538.32
  4. Step 4: Simplify right side
    70,369.56x = 3,742,428,022.06
  5. Step 5: Solve for x
    x = 3,742,428,022.06/70,369.56
  6. Step 6: Final answer
    x = 53,182.48

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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.