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Finding the Fourth Proportional to 14,358.88, 19,810.24 and 8,069.92

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Solution

The fourth proportional to 14,358.88, 19,810.24 and 8,069.92 is: 11,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.88 : 19,810.24 = 8,069.92 : x
  2. Step 2: Convert to fraction form
    14,358.88/19,810.24 = 8,069.92/x
  3. Step 3: Cross multiply
    14,358.88x = 19,810.24 × 8,069.92
  4. Step 4: Simplify right side
    14,358.88x = 159,867,051.98
  5. Step 5: Solve for x
    x = 159,867,051.98/14,358.88
  6. Step 6: Final answer
    x = 11,133.67

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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.