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Finding the Fourth Proportional to 17,312.40, 25,968.60 and 15,465.60

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Solution

The fourth proportional to 17,312.40, 25,968.60 and 15,465.60 is: 23,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.40 : 25,968.60 = 15,465.60 : x
  2. Step 2: Convert to fraction form
    17,312.40/25,968.60 = 15,465.60/x
  3. Step 3: Cross multiply
    17,312.40x = 25,968.60 × 15,465.60
  4. Step 4: Simplify right side
    17,312.40x = 401,619,980.16
  5. Step 5: Solve for x
    x = 401,619,980.16/17,312.40
  6. Step 6: Final answer
    x = 23,198.40

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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.