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Finding the Fourth Proportional to 7,602.75, 11,402.37 and 2,921.22

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Solution

The fourth proportional to 7,602.75, 11,402.37 and 2,921.22 is: 4,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,602.75 : 11,402.37 = 2,921.22 : x
  2. Step 2: Convert to fraction form
    7,602.75/11,402.37 = 2,921.22/x
  3. Step 3: Cross multiply
    7,602.75x = 11,402.37 × 2,921.22
  4. Step 4: Simplify right side
    7,602.75x = 33,308,831.29
  5. Step 5: Solve for x
    x = 33,308,831.29/7,602.75
  6. Step 6: Final answer
    x = 4,381.16

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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.