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Finding the Fourth Proportional to 8,675.58, 11,969.19 and 7,837.50

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Solution

The fourth proportional to 8,675.58, 11,969.19 and 7,837.50 is: 10,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.58 : 11,969.19 = 7,837.50 : x
  2. Step 2: Convert to fraction form
    8,675.58/11,969.19 = 7,837.50/x
  3. Step 3: Cross multiply
    8,675.58x = 11,969.19 × 7,837.50
  4. Step 4: Simplify right side
    8,675.58x = 93,808,526.63
  5. Step 5: Solve for x
    x = 93,808,526.63/8,675.58
  6. Step 6: Final answer
    x = 10,812.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.