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Finding the Fourth Proportional to 52,731.70, 79,051.63 and 21,547.06

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Solution

The fourth proportional to 52,731.70, 79,051.63 and 21,547.06 is: 32,301.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,731.70 : 79,051.63 = 21,547.06 : x
  2. Step 2: Convert to fraction form
    52,731.70/79,051.63 = 21,547.06/x
  3. Step 3: Cross multiply
    52,731.70x = 79,051.63 × 21,547.06
  4. Step 4: Simplify right side
    52,731.70x = 1,703,330,214.71
  5. Step 5: Solve for x
    x = 1,703,330,214.71/52,731.70
  6. Step 6: Final answer
    x = 32,301.83

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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.