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Finding the Fourth Proportional to 19,282.95, 28,927.85 and 6,810.21

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Solution

The fourth proportional to 19,282.95, 28,927.85 and 6,810.21 is: 10,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,282.95 : 28,927.85 = 6,810.21 : x
  2. Step 2: Convert to fraction form
    19,282.95/28,927.85 = 6,810.21/x
  3. Step 3: Cross multiply
    19,282.95x = 28,927.85 × 6,810.21
  4. Step 4: Simplify right side
    19,282.95x = 197,004,733.35
  5. Step 5: Solve for x
    x = 197,004,733.35/19,282.95
  6. Step 6: Final answer
    x = 10,216.52

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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.