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Finding the Fourth Proportional to 12,057.90, 16,904.10 and 12,057.90

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Solution

The fourth proportional to 12,057.90, 16,904.10 and 12,057.90 is: 16,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.90 : 16,904.10 = 12,057.90 : x
  2. Step 2: Convert to fraction form
    12,057.90/16,904.10 = 12,057.90/x
  3. Step 3: Cross multiply
    12,057.90x = 16,904.10 × 12,057.90
  4. Step 4: Simplify right side
    12,057.90x = 203,827,947.39
  5. Step 5: Solve for x
    x = 203,827,947.39/12,057.90
  6. Step 6: Final answer
    x = 16,904.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.