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Finding the Fourth Proportional to 6,899.04, 9,495.90 and 5,767.47

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Solution

The fourth proportional to 6,899.04, 9,495.90 and 5,767.47 is: 7,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.04 : 9,495.90 = 5,767.47 : x
  2. Step 2: Convert to fraction form
    6,899.04/9,495.90 = 5,767.47/x
  3. Step 3: Cross multiply
    6,899.04x = 9,495.90 × 5,767.47
  4. Step 4: Simplify right side
    6,899.04x = 54,767,318.37
  5. Step 5: Solve for x
    x = 54,767,318.37/6,899.04
  6. Step 6: Final answer
    x = 7,938.40

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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.