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Finding the Fourth Proportional to 70,497.20, 97,289.70 and 38,669.06

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Solution

The fourth proportional to 70,497.20, 97,289.70 and 38,669.06 is: 53,365.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.20 : 97,289.70 = 38,669.06 : x
  2. Step 2: Convert to fraction form
    70,497.20/97,289.70 = 38,669.06/x
  3. Step 3: Cross multiply
    70,497.20x = 97,289.70 × 38,669.06
  4. Step 4: Simplify right side
    70,497.20x = 3,762,101,246.68
  5. Step 5: Solve for x
    x = 3,762,101,246.68/70,497.20
  6. Step 6: Final answer
    x = 53,365.26

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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.