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Finding the Fourth Proportional to 70,540.99, 97,346.28 and 38,710.42

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Solution

The fourth proportional to 70,540.99, 97,346.28 and 38,710.42 is: 53,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,540.99 : 97,346.28 = 38,710.42 : x
  2. Step 2: Convert to fraction form
    70,540.99/97,346.28 = 38,710.42/x
  3. Step 3: Cross multiply
    70,540.99x = 97,346.28 × 38,710.42
  4. Step 4: Simplify right side
    70,540.99x = 3,768,315,384.24
  5. Step 5: Solve for x
    x = 3,768,315,384.24/70,540.99
  6. Step 6: Final answer
    x = 53,420.22

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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.