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Finding the Fourth Proportional to 70,497.99, 97,288.56 and 38,668.50

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Solution

The fourth proportional to 70,497.99, 97,288.56 and 38,668.50 is: 53,363.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.99 : 97,288.56 = 38,668.50 : x
  2. Step 2: Convert to fraction form
    70,497.99/97,288.56 = 38,668.50/x
  3. Step 3: Cross multiply
    70,497.99x = 97,288.56 × 38,668.50
  4. Step 4: Simplify right side
    70,497.99x = 3,762,002,682.36
  5. Step 5: Solve for x
    x = 3,762,002,682.36/70,497.99
  6. Step 6: Final answer
    x = 53,363.26

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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.