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Finding the Fourth Proportional to 56,995.70, 85,495.29 and 19,555.25

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Solution

The fourth proportional to 56,995.70, 85,495.29 and 19,555.25 is: 29,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,995.70 : 85,495.29 = 19,555.25 : x
  2. Step 2: Convert to fraction form
    56,995.70/85,495.29 = 19,555.25/x
  3. Step 3: Cross multiply
    56,995.70x = 85,495.29 × 19,555.25
  4. Step 4: Simplify right side
    56,995.70x = 1,671,881,268.96
  5. Step 5: Solve for x
    x = 1,671,881,268.96/56,995.70
  6. Step 6: Final answer
    x = 29,333.46

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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.