Home / 19,649.24-27,129.53-18,394.45

Finding the Fourth Proportional to 19,649.24, 27,129.53 and 18,394.45

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Solution

The fourth proportional to 19,649.24, 27,129.53 and 18,394.45 is: 25,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.24 : 27,129.53 = 18,394.45 : x
  2. Step 2: Convert to fraction form
    19,649.24/27,129.53 = 18,394.45/x
  3. Step 3: Cross multiply
    19,649.24x = 27,129.53 × 18,394.45
  4. Step 4: Simplify right side
    19,649.24x = 499,032,783.11
  5. Step 5: Solve for x
    x = 499,032,783.11/19,649.24
  6. Step 6: Final answer
    x = 25,397.05

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Half scale
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Double scale
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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.