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Finding the Fourth Proportional to 40,060.50, 60,091.56 and 12,358.50

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Solution

The fourth proportional to 40,060.50, 60,091.56 and 12,358.50 is: 18,538.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,060.50 : 60,091.56 = 12,358.50 : x
  2. Step 2: Convert to fraction form
    40,060.50/60,091.56 = 12,358.50/x
  3. Step 3: Cross multiply
    40,060.50x = 60,091.56 × 12,358.50
  4. Step 4: Simplify right side
    40,060.50x = 742,641,544.26
  5. Step 5: Solve for x
    x = 742,641,544.26/40,060.50
  6. Step 6: Final answer
    x = 18,538.00

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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.