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Finding the Fourth Proportional to 60,303.11, 90,462.90 and 20,849.63

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Solution

The fourth proportional to 60,303.11, 90,462.90 and 20,849.63 is: 31,277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,303.11 : 90,462.90 = 20,849.63 : x
  2. Step 2: Convert to fraction form
    60,303.11/90,462.90 = 20,849.63/x
  3. Step 3: Cross multiply
    60,303.11x = 90,462.90 × 20,849.63
  4. Step 4: Simplify right side
    60,303.11x = 1,886,117,993.73
  5. Step 5: Solve for x
    x = 1,886,117,993.73/60,303.11
  6. Step 6: Final answer
    x = 31,277.29

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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.