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Finding the Fourth Proportional to 12,059.79, 18,152.54 and 10,913.64

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Solution

The fourth proportional to 12,059.79, 18,152.54 and 10,913.64 is: 16,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059.79 : 18,152.54 = 10,913.64 : x
  2. Step 2: Convert to fraction form
    12,059.79/18,152.54 = 10,913.64/x
  3. Step 3: Cross multiply
    12,059.79x = 18,152.54 × 10,913.64
  4. Step 4: Simplify right side
    12,059.79x = 198,110,204.93
  5. Step 5: Solve for x
    x = 198,110,204.93/12,059.79
  6. Step 6: Final answer
    x = 16,427.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.