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Finding the Fourth Proportional to 13,804.71, 20,709.01 and 4,442.55

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Solution

The fourth proportional to 13,804.71, 20,709.01 and 4,442.55 is: 6,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.71 : 20,709.01 = 4,442.55 : x
  2. Step 2: Convert to fraction form
    13,804.71/20,709.01 = 4,442.55/x
  3. Step 3: Cross multiply
    13,804.71x = 20,709.01 × 4,442.55
  4. Step 4: Simplify right side
    13,804.71x = 92,000,740.27
  5. Step 5: Solve for x
    x = 92,000,740.27/13,804.71
  6. Step 6: Final answer
    x = 6,664.45

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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.