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Finding the Fourth Proportional to 8,656.84, 11,943.78 and 5,296.15

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Solution

The fourth proportional to 8,656.84, 11,943.78 and 5,296.15 is: 7,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.84 : 11,943.78 = 5,296.15 : x
  2. Step 2: Convert to fraction form
    8,656.84/11,943.78 = 5,296.15/x
  3. Step 3: Cross multiply
    8,656.84x = 11,943.78 × 5,296.15
  4. Step 4: Simplify right side
    8,656.84x = 63,256,050.45
  5. Step 5: Solve for x
    x = 63,256,050.45/8,656.84
  6. Step 6: Final answer
    x = 7,307.06

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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.