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Finding the Fourth Proportional to 18,275.01, 27,411.93 and 7,742.22

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Solution

The fourth proportional to 18,275.01, 27,411.93 and 7,742.22 is: 11,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.01 : 27,411.93 = 7,742.22 : x
  2. Step 2: Convert to fraction form
    18,275.01/27,411.93 = 7,742.22/x
  3. Step 3: Cross multiply
    18,275.01x = 27,411.93 × 7,742.22
  4. Step 4: Simplify right side
    18,275.01x = 212,229,192.68
  5. Step 5: Solve for x
    x = 212,229,192.68/18,275.01
  6. Step 6: Final answer
    x = 11,613.08

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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.