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Finding the Fourth Proportional to 7,774.99, 11,664.51 and 4,076.22

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Solution

The fourth proportional to 7,774.99, 11,664.51 and 4,076.22 is: 6,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.99 : 11,664.51 = 4,076.22 : x
  2. Step 2: Convert to fraction form
    7,774.99/11,664.51 = 4,076.22/x
  3. Step 3: Cross multiply
    7,774.99x = 11,664.51 × 4,076.22
  4. Step 4: Simplify right side
    7,774.99x = 47,547,137.41
  5. Step 5: Solve for x
    x = 47,547,137.41/7,774.99
  6. Step 6: Final answer
    x = 6,115.40

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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.