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Finding the Fourth Proportional to 11,125.40, 16,673.70 and 9,829.40

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Solution

The fourth proportional to 11,125.40, 16,673.70 and 9,829.40 is: 14,731.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.40 : 16,673.70 = 9,829.40 : x
  2. Step 2: Convert to fraction form
    11,125.40/16,673.70 = 9,829.40/x
  3. Step 3: Cross multiply
    11,125.40x = 16,673.70 × 9,829.40
  4. Step 4: Simplify right side
    11,125.40x = 163,892,466.78
  5. Step 5: Solve for x
    x = 163,892,466.78/11,125.40
  6. Step 6: Final answer
    x = 14,731.38

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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.