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Finding the Fourth Proportional to 13,904.96, 20,857.53 and 4,670.96

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Solution

The fourth proportional to 13,904.96, 20,857.53 and 4,670.96 is: 7,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.96 : 20,857.53 = 4,670.96 : x
  2. Step 2: Convert to fraction form
    13,904.96/20,857.53 = 4,670.96/x
  3. Step 3: Cross multiply
    13,904.96x = 20,857.53 × 4,670.96
  4. Step 4: Simplify right side
    13,904.96x = 97,424,688.33
  5. Step 5: Solve for x
    x = 97,424,688.33/13,904.96
  6. Step 6: Final answer
    x = 7,006.47

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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.