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Finding the Fourth Proportional to 30,390.92, 41,901.06 and 25,849.16

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Solution

The fourth proportional to 30,390.92, 41,901.06 and 25,849.16 is: 35,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.92 : 41,901.06 = 25,849.16 : x
  2. Step 2: Convert to fraction form
    30,390.92/41,901.06 = 25,849.16/x
  3. Step 3: Cross multiply
    30,390.92x = 41,901.06 × 25,849.16
  4. Step 4: Simplify right side
    30,390.92x = 1,083,107,204.11
  5. Step 5: Solve for x
    x = 1,083,107,204.11/30,390.92
  6. Step 6: Final answer
    x = 35,639.17

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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.