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Finding the Fourth Proportional to 19,095.76, 28,639.94 and 9,605.55

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Solution

The fourth proportional to 19,095.76, 28,639.94 and 9,605.55 is: 14,406.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,095.76 : 28,639.94 = 9,605.55 : x
  2. Step 2: Convert to fraction form
    19,095.76/28,639.94 = 9,605.55/x
  3. Step 3: Cross multiply
    19,095.76x = 28,639.94 × 9,605.55
  4. Step 4: Simplify right side
    19,095.76x = 275,102,327.64
  5. Step 5: Solve for x
    x = 275,102,327.64/19,095.76
  6. Step 6: Final answer
    x = 14,406.46

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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.