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Finding the Fourth Proportional to 13,703.91, 20,541.12 and 5,804.58

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Solution

The fourth proportional to 13,703.91, 20,541.12 and 5,804.58 is: 8,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.91 : 20,541.12 = 5,804.58 : x
  2. Step 2: Convert to fraction form
    13,703.91/20,541.12 = 5,804.58/x
  3. Step 3: Cross multiply
    13,703.91x = 20,541.12 × 5,804.58
  4. Step 4: Simplify right side
    13,703.91x = 119,232,574.33
  5. Step 5: Solve for x
    x = 119,232,574.33/13,703.91
  6. Step 6: Final answer
    x = 8,700.62

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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.