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Finding the Fourth Proportional to 13,903.65, 20,845.02 and 4,538.10

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Solution

The fourth proportional to 13,903.65, 20,845.02 and 4,538.10 is: 6,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.65 : 20,845.02 = 4,538.10 : x
  2. Step 2: Convert to fraction form
    13,903.65/20,845.02 = 4,538.10/x
  3. Step 3: Cross multiply
    13,903.65x = 20,845.02 × 4,538.10
  4. Step 4: Simplify right side
    13,903.65x = 94,596,785.26
  5. Step 5: Solve for x
    x = 94,596,785.26/13,903.65
  6. Step 6: Final answer
    x = 6,803.74

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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.