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Finding the Fourth Proportional to 58,489.78, 87,705.50 and 26,890.06

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Solution

The fourth proportional to 58,489.78, 87,705.50 and 26,890.06 is: 40,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,489.78 : 87,705.50 = 26,890.06 : x
  2. Step 2: Convert to fraction form
    58,489.78/87,705.50 = 26,890.06/x
  3. Step 3: Cross multiply
    58,489.78x = 87,705.50 × 26,890.06
  4. Step 4: Simplify right side
    58,489.78x = 2,358,406,157.33
  5. Step 5: Solve for x
    x = 2,358,406,157.33/58,489.78
  6. Step 6: Final answer
    x = 40,321.68

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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.