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Finding the Fourth Proportional to 56,421.72, 77,859.08 and 32,546.96

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Solution

The fourth proportional to 56,421.72, 77,859.08 and 32,546.96 is: 44,913.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.72 : 77,859.08 = 32,546.96 : x
  2. Step 2: Convert to fraction form
    56,421.72/77,859.08 = 32,546.96/x
  3. Step 3: Cross multiply
    56,421.72x = 77,859.08 × 32,546.96
  4. Step 4: Simplify right side
    56,421.72x = 2,534,076,362.40
  5. Step 5: Solve for x
    x = 2,534,076,362.40/56,421.72
  6. Step 6: Final answer
    x = 44,913.14

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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.