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Finding the Fourth Proportional to 19,123, 26,378.30 and 12,037.12

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Solution

The fourth proportional to 19,123, 26,378.30 and 12,037.12 is: 16,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123 : 26,378.30 = 12,037.12 : x
  2. Step 2: Convert to fraction form
    19,123/26,378.30 = 12,037.12/x
  3. Step 3: Cross multiply
    19,123x = 26,378.30 × 12,037.12
  4. Step 4: Simplify right side
    19,123x = 317,518,762.50
  5. Step 5: Solve for x
    x = 317,518,762.50/19,123
  6. Step 6: Final answer
    x = 16,604.02

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Double scale
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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.