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Finding the Fourth Proportional to 8,152.95, 12,215.76 and 4,866.99

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Solution

The fourth proportional to 8,152.95, 12,215.76 and 4,866.99 is: 7,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,152.95 : 12,215.76 = 4,866.99 : x
  2. Step 2: Convert to fraction form
    8,152.95/12,215.76 = 4,866.99/x
  3. Step 3: Cross multiply
    8,152.95x = 12,215.76 × 4,866.99
  4. Step 4: Simplify right side
    8,152.95x = 59,453,945.08
  5. Step 5: Solve for x
    x = 59,453,945.08/8,152.95
  6. Step 6: Final answer
    x = 7,292.32

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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.