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Finding the Fourth Proportional to 30,009.87, 41,411.49 and 16,580.99

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Solution

The fourth proportional to 30,009.87, 41,411.49 and 16,580.99 is: 22,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.87 : 41,411.49 = 16,580.99 : x
  2. Step 2: Convert to fraction form
    30,009.87/41,411.49 = 16,580.99/x
  3. Step 3: Cross multiply
    30,009.87x = 41,411.49 × 16,580.99
  4. Step 4: Simplify right side
    30,009.87x = 686,643,294.52
  5. Step 5: Solve for x
    x = 686,643,294.52/30,009.87
  6. Step 6: Final answer
    x = 22,880.58

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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.