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Finding the Fourth Proportional to 52,710.84, 72,740.70 and 28,837.08

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Solution

The fourth proportional to 52,710.84, 72,740.70 and 28,837.08 is: 39,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,710.84 : 72,740.70 = 28,837.08 : x
  2. Step 2: Convert to fraction form
    52,710.84/72,740.70 = 28,837.08/x
  3. Step 3: Cross multiply
    52,710.84x = 72,740.70 × 28,837.08
  4. Step 4: Simplify right side
    52,710.84x = 2,097,629,385.16
  5. Step 5: Solve for x
    x = 2,097,629,385.16/52,710.84
  6. Step 6: Final answer
    x = 39,795.03

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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.