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Finding the Fourth Proportional to 52,881.36, 72,975.84 and 29,007.48

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Solution

The fourth proportional to 52,881.36, 72,975.84 and 29,007.48 is: 40,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,881.36 : 72,975.84 = 29,007.48 : x
  2. Step 2: Convert to fraction form
    52,881.36/72,975.84 = 29,007.48/x
  3. Step 3: Cross multiply
    52,881.36x = 72,975.84 × 29,007.48
  4. Step 4: Simplify right side
    52,881.36x = 2,116,845,219.28
  5. Step 5: Solve for x
    x = 2,116,845,219.28/52,881.36
  6. Step 6: Final answer
    x = 40,030.08

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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.