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Finding the Fourth Proportional to 14,953.96, 20,487 and 14,393.44

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Solution

The fourth proportional to 14,953.96, 20,487 and 14,393.44 is: 19,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.96 : 20,487 = 14,393.44 : x
  2. Step 2: Convert to fraction form
    14,953.96/20,487 = 14,393.44/x
  3. Step 3: Cross multiply
    14,953.96x = 20,487 × 14,393.44
  4. Step 4: Simplify right side
    14,953.96x = 294,878,405.28
  5. Step 5: Solve for x
    x = 294,878,405.28/14,953.96
  6. Step 6: Final answer
    x = 19,719.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.