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Finding the Fourth Proportional to 19,030.95, 28,529.15 and 7,352.91

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Solution

The fourth proportional to 19,030.95, 28,529.15 and 7,352.91 is: 11,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,030.95 : 28,529.15 = 7,352.91 : x
  2. Step 2: Convert to fraction form
    19,030.95/28,529.15 = 7,352.91/x
  3. Step 3: Cross multiply
    19,030.95x = 28,529.15 × 7,352.91
  4. Step 4: Simplify right side
    19,030.95x = 209,772,235.56
  5. Step 5: Solve for x
    x = 209,772,235.56/19,030.95
  6. Step 6: Final answer
    x = 11,022.69

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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.