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Finding the Fourth Proportional to 52,985.73, 79,457.73 and 19,243.77

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Solution

The fourth proportional to 52,985.73, 79,457.73 and 19,243.77 is: 28,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,985.73 : 79,457.73 = 19,243.77 : x
  2. Step 2: Convert to fraction form
    52,985.73/79,457.73 = 19,243.77/x
  3. Step 3: Cross multiply
    52,985.73x = 79,457.73 × 19,243.77
  4. Step 4: Simplify right side
    52,985.73x = 1,529,066,280.84
  5. Step 5: Solve for x
    x = 1,529,066,280.84/52,985.73
  6. Step 6: Final answer
    x = 28,858.08

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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.