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Finding the Fourth Proportional to 70,693.92, 97,559.47 and 38,430.71

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Solution

The fourth proportional to 70,693.92, 97,559.47 and 38,430.71 is: 53,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,693.92 : 97,559.47 = 38,430.71 : x
  2. Step 2: Convert to fraction form
    70,693.92/97,559.47 = 38,430.71/x
  3. Step 3: Cross multiply
    70,693.92x = 97,559.47 × 38,430.71
  4. Step 4: Simplify right side
    70,693.92x = 3,749,279,259.56
  5. Step 5: Solve for x
    x = 3,749,279,259.56/70,693.92
  6. Step 6: Final answer
    x = 53,035.39

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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.