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Finding the Fourth Proportional to 70,430.78, 97,196.94 and 38,599.67

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Solution

The fourth proportional to 70,430.78, 97,196.94 and 38,599.67 is: 53,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,430.78 : 97,196.94 = 38,599.67 : x
  2. Step 2: Convert to fraction form
    70,430.78/97,196.94 = 38,599.67/x
  3. Step 3: Cross multiply
    70,430.78x = 97,196.94 × 38,599.67
  4. Step 4: Simplify right side
    70,430.78x = 3,751,770,052.00
  5. Step 5: Solve for x
    x = 3,751,770,052.00/70,430.78
  6. Step 6: Final answer
    x = 53,268.90

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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.