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Finding the Fourth Proportional to 52,929.28, 79,400.96 and 27,970.32

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Solution

The fourth proportional to 52,929.28, 79,400.96 and 27,970.32 is: 41,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,929.28 : 79,400.96 = 27,970.32 : x
  2. Step 2: Convert to fraction form
    52,929.28/79,400.96 = 27,970.32/x
  3. Step 3: Cross multiply
    52,929.28x = 79,400.96 × 27,970.32
  4. Step 4: Simplify right side
    52,929.28x = 2,220,870,259.51
  5. Step 5: Solve for x
    x = 2,220,870,259.51/52,929.28
  6. Step 6: Final answer
    x = 41,959.20

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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.