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Finding the Fourth Proportional to 29,038.25, 40,090.25 and 18,983.52

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Solution

The fourth proportional to 29,038.25, 40,090.25 and 18,983.52 is: 26,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,038.25 : 40,090.25 = 18,983.52 : x
  2. Step 2: Convert to fraction form
    29,038.25/40,090.25 = 18,983.52/x
  3. Step 3: Cross multiply
    29,038.25x = 40,090.25 × 18,983.52
  4. Step 4: Simplify right side
    29,038.25x = 761,054,110.14
  5. Step 5: Solve for x
    x = 761,054,110.14/29,038.25
  6. Step 6: Final answer
    x = 26,208.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.