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Finding the Fourth Proportional to 22,402.95, 30,903.19 and 14,004.87

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Solution

The fourth proportional to 22,402.95, 30,903.19 and 14,004.87 is: 19,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.95 : 30,903.19 = 14,004.87 : x
  2. Step 2: Convert to fraction form
    22,402.95/30,903.19 = 14,004.87/x
  3. Step 3: Cross multiply
    22,402.95x = 30,903.19 × 14,004.87
  4. Step 4: Simplify right side
    22,402.95x = 432,795,158.54
  5. Step 5: Solve for x
    x = 432,795,158.54/22,402.95
  6. Step 6: Final answer
    x = 19,318.67

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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.