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Finding the Fourth Proportional to 18,783.96, 25,925.04 and 10,830.84

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Solution

The fourth proportional to 18,783.96, 25,925.04 and 10,830.84 is: 14,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.96 : 25,925.04 = 10,830.84 : x
  2. Step 2: Convert to fraction form
    18,783.96/25,925.04 = 10,830.84/x
  3. Step 3: Cross multiply
    18,783.96x = 25,925.04 × 10,830.84
  4. Step 4: Simplify right side
    18,783.96x = 280,789,960.23
  5. Step 5: Solve for x
    x = 280,789,960.23/18,783.96
  6. Step 6: Final answer
    x = 14,948.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.