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Finding the Fourth Proportional to 6,681.30, 9,259.13 and 6,587.34

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Solution

The fourth proportional to 6,681.30, 9,259.13 and 6,587.34 is: 9,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.30 : 9,259.13 = 6,587.34 : x
  2. Step 2: Convert to fraction form
    6,681.30/9,259.13 = 6,587.34/x
  3. Step 3: Cross multiply
    6,681.30x = 9,259.13 × 6,587.34
  4. Step 4: Simplify right side
    6,681.30x = 60,993,004.48
  5. Step 5: Solve for x
    x = 60,993,004.48/6,681.30
  6. Step 6: Final answer
    x = 9,128.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.