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Finding the Fourth Proportional to 30,009.41, 41,410.90 and 16,580.55

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Solution

The fourth proportional to 30,009.41, 41,410.90 and 16,580.55 is: 22,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.41 : 41,410.90 = 16,580.55 : x
  2. Step 2: Convert to fraction form
    30,009.41/41,410.90 = 16,580.55/x
  3. Step 3: Cross multiply
    30,009.41x = 41,410.90 × 16,580.55
  4. Step 4: Simplify right side
    30,009.41x = 686,615,415.09
  5. Step 5: Solve for x
    x = 686,615,415.09/30,009.41
  6. Step 6: Final answer
    x = 22,880.01

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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.