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Finding the Fourth Proportional to 13,902.93, 20,854.50 and 4,668.93

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Solution

The fourth proportional to 13,902.93, 20,854.50 and 4,668.93 is: 7,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.93 : 20,854.50 = 4,668.93 : x
  2. Step 2: Convert to fraction form
    13,902.93/20,854.50 = 4,668.93/x
  3. Step 3: Cross multiply
    13,902.93x = 20,854.50 × 4,668.93
  4. Step 4: Simplify right side
    13,902.93x = 97,368,200.69
  5. Step 5: Solve for x
    x = 97,368,200.69/13,902.93
  6. Step 6: Final answer
    x = 7,003.43

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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.