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Finding the Fourth Proportional to 52,705.84, 72,733.80 and 28,832.08

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Solution

The fourth proportional to 52,705.84, 72,733.80 and 28,832.08 is: 39,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,705.84 : 72,733.80 = 28,832.08 : x
  2. Step 2: Convert to fraction form
    52,705.84/72,733.80 = 28,832.08/x
  3. Step 3: Cross multiply
    52,705.84x = 72,733.80 × 28,832.08
  4. Step 4: Simplify right side
    52,705.84x = 2,097,066,740.30
  5. Step 5: Solve for x
    x = 2,097,066,740.30/52,705.84
  6. Step 6: Final answer
    x = 39,788.13

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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.