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Finding the Fourth Proportional to 58,449.93, 87,653.37 and 20,999.98

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Solution

The fourth proportional to 58,449.93, 87,653.37 and 20,999.98 is: 31,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,449.93 : 87,653.37 = 20,999.98 : x
  2. Step 2: Convert to fraction form
    58,449.93/87,653.37 = 20,999.98/x
  3. Step 3: Cross multiply
    58,449.93x = 87,653.37 × 20,999.98
  4. Step 4: Simplify right side
    58,449.93x = 1,840,719,274.59
  5. Step 5: Solve for x
    x = 1,840,719,274.59/58,449.93
  6. Step 6: Final answer
    x = 31,492.24

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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.