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Finding the Fourth Proportional to 17,385.60, 26,078.40 and 10,473.60

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Solution

The fourth proportional to 17,385.60, 26,078.40 and 10,473.60 is: 15,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.60 : 26,078.40 = 10,473.60 : x
  2. Step 2: Convert to fraction form
    17,385.60/26,078.40 = 10,473.60/x
  3. Step 3: Cross multiply
    17,385.60x = 26,078.40 × 10,473.60
  4. Step 4: Simplify right side
    17,385.60x = 273,134,730.24
  5. Step 5: Solve for x
    x = 273,134,730.24/17,385.60
  6. Step 6: Final answer
    x = 15,710.40

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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.