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Finding the Fourth Proportional to 19,326.48, 26,669.80 and 10,942.48

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Solution

The fourth proportional to 19,326.48, 26,669.80 and 10,942.48 is: 15,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.48 : 26,669.80 = 10,942.48 : x
  2. Step 2: Convert to fraction form
    19,326.48/26,669.80 = 10,942.48/x
  3. Step 3: Cross multiply
    19,326.48x = 26,669.80 × 10,942.48
  4. Step 4: Simplify right side
    19,326.48x = 291,833,753.10
  5. Step 5: Solve for x
    x = 291,833,753.10/19,326.48
  6. Step 6: Final answer
    x = 15,100.20

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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.