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Finding the Fourth Proportional to 21,901.74, 32,852.13 and 7,110.63

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Solution

The fourth proportional to 21,901.74, 32,852.13 and 7,110.63 is: 10,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.74 : 32,852.13 = 7,110.63 : x
  2. Step 2: Convert to fraction form
    21,901.74/32,852.13 = 7,110.63/x
  3. Step 3: Cross multiply
    21,901.74x = 32,852.13 × 7,110.63
  4. Step 4: Simplify right side
    21,901.74x = 233,599,341.14
  5. Step 5: Solve for x
    x = 233,599,341.14/21,901.74
  6. Step 6: Final answer
    x = 10,665.79

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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.