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Finding the Fourth Proportional to 19,482.55, 26,868.26 and 12,765.74

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Solution

The fourth proportional to 19,482.55, 26,868.26 and 12,765.74 is: 17,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.55 : 26,868.26 = 12,765.74 : x
  2. Step 2: Convert to fraction form
    19,482.55/26,868.26 = 12,765.74/x
  3. Step 3: Cross multiply
    19,482.55x = 26,868.26 × 12,765.74
  4. Step 4: Simplify right side
    19,482.55x = 342,993,118.99
  5. Step 5: Solve for x
    x = 342,993,118.99/19,482.55
  6. Step 6: Final answer
    x = 17,605.15

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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.