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Finding the Fourth Proportional to 17,164.40, 25,762.80 and 10,603.40

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Solution

The fourth proportional to 17,164.40, 25,762.80 and 10,603.40 is: 15,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,164.40 : 25,762.80 = 10,603.40 : x
  2. Step 2: Convert to fraction form
    17,164.40/25,762.80 = 10,603.40/x
  3. Step 3: Cross multiply
    17,164.40x = 25,762.80 × 10,603.40
  4. Step 4: Simplify right side
    17,164.40x = 273,173,273.52
  5. Step 5: Solve for x
    x = 273,173,273.52/17,164.40
  6. Step 6: Final answer
    x = 15,915.11

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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.