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Finding the Fourth Proportional to 58,336.40, 87,518.56 and 18,893.60

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Solution

The fourth proportional to 58,336.40, 87,518.56 and 18,893.60 is: 28,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,336.40 : 87,518.56 = 18,893.60 : x
  2. Step 2: Convert to fraction form
    58,336.40/87,518.56 = 18,893.60/x
  3. Step 3: Cross multiply
    58,336.40x = 87,518.56 × 18,893.60
  4. Step 4: Simplify right side
    58,336.40x = 1,653,540,665.22
  5. Step 5: Solve for x
    x = 1,653,540,665.22/58,336.40
  6. Step 6: Final answer
    x = 28,344.92

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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.