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Finding the Fourth Proportional to 14,999.78, 20,700.56 and 9,033.38

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Solution

The fourth proportional to 14,999.78, 20,700.56 and 9,033.38 is: 12,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.78 : 20,700.56 = 9,033.38 : x
  2. Step 2: Convert to fraction form
    14,999.78/20,700.56 = 9,033.38/x
  3. Step 3: Cross multiply
    14,999.78x = 20,700.56 × 9,033.38
  4. Step 4: Simplify right side
    14,999.78x = 186,995,943.77
  5. Step 5: Solve for x
    x = 186,995,943.77/14,999.78
  6. Step 6: Final answer
    x = 12,466.58

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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.