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Finding the Fourth Proportional to 29,181.84, 40,542.81 and 28,831.92

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Solution

The fourth proportional to 29,181.84, 40,542.81 and 28,831.92 is: 40,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,181.84 : 40,542.81 = 28,831.92 : x
  2. Step 2: Convert to fraction form
    29,181.84/40,542.81 = 28,831.92/x
  3. Step 3: Cross multiply
    29,181.84x = 40,542.81 × 28,831.92
  4. Step 4: Simplify right side
    29,181.84x = 1,168,927,054.50
  5. Step 5: Solve for x
    x = 1,168,927,054.50/29,181.84
  6. Step 6: Final answer
    x = 40,056.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.