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Finding the Fourth Proportional to 8,681.99, 11,985.29 and 5,496.83

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Solution

The fourth proportional to 8,681.99, 11,985.29 and 5,496.83 is: 7,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.99 : 11,985.29 = 5,496.83 : x
  2. Step 2: Convert to fraction form
    8,681.99/11,985.29 = 5,496.83/x
  3. Step 3: Cross multiply
    8,681.99x = 11,985.29 × 5,496.83
  4. Step 4: Simplify right side
    8,681.99x = 65,881,101.63
  5. Step 5: Solve for x
    x = 65,881,101.63/8,681.99
  6. Step 6: Final answer
    x = 7,588.25

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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.