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Finding the Fourth Proportional to 19,341, 26,689.14 and 10,957.32

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Solution

The fourth proportional to 19,341, 26,689.14 and 10,957.32 is: 15,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341 : 26,689.14 = 10,957.32 : x
  2. Step 2: Convert to fraction form
    19,341/26,689.14 = 10,957.32/x
  3. Step 3: Cross multiply
    19,341x = 26,689.14 × 10,957.32
  4. Step 4: Simplify right side
    19,341x = 292,441,447.50
  5. Step 5: Solve for x
    x = 292,441,447.50/19,341
  6. Step 6: Final answer
    x = 15,120.29

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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.