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Finding the Fourth Proportional to 56,681.82, 85,027.50 and 17,239.30

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Solution

The fourth proportional to 56,681.82, 85,027.50 and 17,239.30 is: 25,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,681.82 : 85,027.50 = 17,239.30 : x
  2. Step 2: Convert to fraction form
    56,681.82/85,027.50 = 17,239.30/x
  3. Step 3: Cross multiply
    56,681.82x = 85,027.50 × 17,239.30
  4. Step 4: Simplify right side
    56,681.82x = 1,465,814,580.75
  5. Step 5: Solve for x
    x = 1,465,814,580.75/56,681.82
  6. Step 6: Final answer
    x = 25,860.40

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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.