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Finding the Fourth Proportional to 12,041.70, 16,869.90 and 12,041.70

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Solution

The fourth proportional to 12,041.70, 16,869.90 and 12,041.70 is: 16,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.70 : 16,869.90 = 12,041.70 : x
  2. Step 2: Convert to fraction form
    12,041.70/16,869.90 = 12,041.70/x
  3. Step 3: Cross multiply
    12,041.70x = 16,869.90 × 12,041.70
  4. Step 4: Simplify right side
    12,041.70x = 203,142,274.83
  5. Step 5: Solve for x
    x = 203,142,274.83/12,041.70
  6. Step 6: Final answer
    x = 16,869.90

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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.