Home / 16,880.40-25,320.60-16,783.20

Finding the Fourth Proportional to 16,880.40, 25,320.60 and 16,783.20

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Solution

The fourth proportional to 16,880.40, 25,320.60 and 16,783.20 is: 25,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880.40 : 25,320.60 = 16,783.20 : x
  2. Step 2: Convert to fraction form
    16,880.40/25,320.60 = 16,783.20/x
  3. Step 3: Cross multiply
    16,880.40x = 25,320.60 × 16,783.20
  4. Step 4: Simplify right side
    16,880.40x = 424,960,693.92
  5. Step 5: Solve for x
    x = 424,960,693.92/16,880.40
  6. Step 6: Final answer
    x = 25,174.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.