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Finding the Fourth Proportional to 60,215.83, 90,328.91 and 15,842.81

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Solution

The fourth proportional to 60,215.83, 90,328.91 and 15,842.81 is: 23,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,215.83 : 90,328.91 = 15,842.81 : x
  2. Step 2: Convert to fraction form
    60,215.83/90,328.91 = 15,842.81/x
  3. Step 3: Cross multiply
    60,215.83x = 90,328.91 × 15,842.81
  4. Step 4: Simplify right side
    60,215.83x = 1,431,063,905.25
  5. Step 5: Solve for x
    x = 1,431,063,905.25/60,215.83
  6. Step 6: Final answer
    x = 23,765.58

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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.