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Finding the Fourth Proportional to 19,333.78, 26,681.16 and 10,950.28

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Solution

The fourth proportional to 19,333.78, 26,681.16 and 10,950.28 is: 15,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,333.78 : 26,681.16 = 10,950.28 : x
  2. Step 2: Convert to fraction form
    19,333.78/26,681.16 = 10,950.28/x
  3. Step 3: Cross multiply
    19,333.78x = 26,681.16 × 10,950.28
  4. Step 4: Simplify right side
    19,333.78x = 292,166,172.72
  5. Step 5: Solve for x
    x = 292,166,172.72/19,333.78
  6. Step 6: Final answer
    x = 15,111.69

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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.