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Finding the Fourth Proportional to 58,486.96, 87,709.72 and 19,036.72

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Solution

The fourth proportional to 58,486.96, 87,709.72 and 19,036.72 is: 28,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,486.96 : 87,709.72 = 19,036.72 : x
  2. Step 2: Convert to fraction form
    58,486.96/87,709.72 = 19,036.72/x
  3. Step 3: Cross multiply
    58,486.96x = 87,709.72 × 19,036.72
  4. Step 4: Simplify right side
    58,486.96x = 1,669,705,380.92
  5. Step 5: Solve for x
    x = 1,669,705,380.92/58,486.96
  6. Step 6: Final answer
    x = 28,548.34

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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.