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Finding the Fourth Proportional to 19,341.92, 26,693.52 and 10,961.12

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Solution

The fourth proportional to 19,341.92, 26,693.52 and 10,961.12 is: 15,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341.92 : 26,693.52 = 10,961.12 : x
  2. Step 2: Convert to fraction form
    19,341.92/26,693.52 = 10,961.12/x
  3. Step 3: Cross multiply
    19,341.92x = 26,693.52 × 10,961.12
  4. Step 4: Simplify right side
    19,341.92x = 292,590,875.94
  5. Step 5: Solve for x
    x = 292,590,875.94/19,341.92
  6. Step 6: Final answer
    x = 15,127.29

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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.