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Finding the Fourth Proportional to 14,297.78, 19,730.94 and 8,010.20

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Solution

The fourth proportional to 14,297.78, 19,730.94 and 8,010.20 is: 11,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,297.78 : 19,730.94 = 8,010.20 : x
  2. Step 2: Convert to fraction form
    14,297.78/19,730.94 = 8,010.20/x
  3. Step 3: Cross multiply
    14,297.78x = 19,730.94 × 8,010.20
  4. Step 4: Simplify right side
    14,297.78x = 158,048,775.59
  5. Step 5: Solve for x
    x = 158,048,775.59/14,297.78
  6. Step 6: Final answer
    x = 11,054.08

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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.