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Finding the Fourth Proportional to 73,328.40, 109,991.52 and 17,924.40

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Solution

The fourth proportional to 73,328.40, 109,991.52 and 17,924.40 is: 26,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,328.40 : 109,991.52 = 17,924.40 : x
  2. Step 2: Convert to fraction form
    73,328.40/109,991.52 = 17,924.40/x
  3. Step 3: Cross multiply
    73,328.40x = 109,991.52 × 17,924.40
  4. Step 4: Simplify right side
    73,328.40x = 1,971,532,001.09
  5. Step 5: Solve for x
    x = 1,971,532,001.09/73,328.40
  6. Step 6: Final answer
    x = 26,886.34

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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.