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Finding the Fourth Proportional to 70,615.08, 97,450.56 and 38,786.94

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Solution

The fourth proportional to 70,615.08, 97,450.56 and 38,786.94 is: 53,526.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.08 : 97,450.56 = 38,786.94 : x
  2. Step 2: Convert to fraction form
    70,615.08/97,450.56 = 38,786.94/x
  3. Step 3: Cross multiply
    70,615.08x = 97,450.56 × 38,786.94
  4. Step 4: Simplify right side
    70,615.08x = 3,779,809,023.69
  5. Step 5: Solve for x
    x = 3,779,809,023.69/70,615.08
  6. Step 6: Final answer
    x = 53,526.94

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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.