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Finding the Fourth Proportional to 52,678.94, 79,009.59 and 17,618.48

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Solution

The fourth proportional to 52,678.94, 79,009.59 and 17,618.48 is: 26,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,678.94 : 79,009.59 = 17,618.48 : x
  2. Step 2: Convert to fraction form
    52,678.94/79,009.59 = 17,618.48/x
  3. Step 3: Cross multiply
    52,678.94x = 79,009.59 × 17,618.48
  4. Step 4: Simplify right side
    52,678.94x = 1,392,028,881.22
  5. Step 5: Solve for x
    x = 1,392,028,881.22/52,678.94
  6. Step 6: Final answer
    x = 26,424.77

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1.5x scale

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.