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Finding the Fourth Proportional to 56,359, 77,775.28 and 32,485.48

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Solution

The fourth proportional to 56,359, 77,775.28 and 32,485.48 is: 44,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359 : 77,775.28 = 32,485.48 : x
  2. Step 2: Convert to fraction form
    56,359/77,775.28 = 32,485.48/x
  3. Step 3: Cross multiply
    56,359x = 77,775.28 × 32,485.48
  4. Step 4: Simplify right side
    56,359x = 2,526,567,302.93
  5. Step 5: Solve for x
    x = 2,526,567,302.93/56,359
  6. Step 6: Final answer
    x = 44,829.88

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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.