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Finding the Fourth Proportional to 56,617.72, 84,926.61 and 55,686.89

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Solution

The fourth proportional to 56,617.72, 84,926.61 and 55,686.89 is: 83,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,617.72 : 84,926.61 = 55,686.89 : x
  2. Step 2: Convert to fraction form
    56,617.72/84,926.61 = 55,686.89/x
  3. Step 3: Cross multiply
    56,617.72x = 84,926.61 × 55,686.89
  4. Step 4: Simplify right side
    56,617.72x = 4,729,299,001.46
  5. Step 5: Solve for x
    x = 4,729,299,001.46/56,617.72
  6. Step 6: Final answer
    x = 83,530.37

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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.