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Finding the Fourth Proportional to 38,709.99, 58,065.53 and 11,007.99

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Solution

The fourth proportional to 38,709.99, 58,065.53 and 11,007.99 is: 16,512.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,709.99 : 58,065.53 = 11,007.99 : x
  2. Step 2: Convert to fraction form
    38,709.99/58,065.53 = 11,007.99/x
  3. Step 3: Cross multiply
    38,709.99x = 58,065.53 × 11,007.99
  4. Step 4: Simplify right side
    38,709.99x = 639,184,718.54
  5. Step 5: Solve for x
    x = 639,184,718.54/38,709.99
  6. Step 6: Final answer
    x = 16,512.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.