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Finding the Fourth Proportional to 60,656.61, 91,001.29 and 18,535.54

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Solution

The fourth proportional to 60,656.61, 91,001.29 and 18,535.54 is: 27,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,656.61 : 91,001.29 = 18,535.54 : x
  2. Step 2: Convert to fraction form
    60,656.61/91,001.29 = 18,535.54/x
  3. Step 3: Cross multiply
    60,656.61x = 91,001.29 × 18,535.54
  4. Step 4: Simplify right side
    60,656.61x = 1,686,758,050.85
  5. Step 5: Solve for x
    x = 1,686,758,050.85/60,656.61
  6. Step 6: Final answer
    x = 27,808.31

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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.