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Finding the Fourth Proportional to 26,585.98, 39,886.76 and 7,866.50

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Solution

The fourth proportional to 26,585.98, 39,886.76 and 7,866.50 is: 11,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,585.98 : 39,886.76 = 7,866.50 : x
  2. Step 2: Convert to fraction form
    26,585.98/39,886.76 = 7,866.50/x
  3. Step 3: Cross multiply
    26,585.98x = 39,886.76 × 7,866.50
  4. Step 4: Simplify right side
    26,585.98x = 313,769,197.54
  5. Step 5: Solve for x
    x = 313,769,197.54/26,585.98
  6. Step 6: Final answer
    x = 11,802.05

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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.