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Finding the Fourth Proportional to 38,707.99, 58,047.81 and 30,404.17

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Solution

The fourth proportional to 38,707.99, 58,047.81 and 30,404.17 is: 45,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,707.99 : 58,047.81 = 30,404.17 : x
  2. Step 2: Convert to fraction form
    38,707.99/58,047.81 = 30,404.17/x
  3. Step 3: Cross multiply
    38,707.99x = 58,047.81 × 30,404.17
  4. Step 4: Simplify right side
    38,707.99x = 1,764,895,441.91
  5. Step 5: Solve for x
    x = 1,764,895,441.91/38,707.99
  6. Step 6: Final answer
    x = 45,595.12

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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.