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Finding the Fourth Proportional to 26,047.68, 39,068.64 and 8,515.68

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Solution

The fourth proportional to 26,047.68, 39,068.64 and 8,515.68 is: 12,772.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,047.68 : 39,068.64 = 8,515.68 : x
  2. Step 2: Convert to fraction form
    26,047.68/39,068.64 = 8,515.68/x
  3. Step 3: Cross multiply
    26,047.68x = 39,068.64 × 8,515.68
  4. Step 4: Simplify right side
    26,047.68x = 332,696,036.28
  5. Step 5: Solve for x
    x = 332,696,036.28/26,047.68
  6. Step 6: Final answer
    x = 12,772.58

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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.