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Finding the Fourth Proportional to 33,046, 45,603.80 and 18,142.32

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Solution

The fourth proportional to 33,046, 45,603.80 and 18,142.32 is: 25,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,046 : 45,603.80 = 18,142.32 : x
  2. Step 2: Convert to fraction form
    33,046/45,603.80 = 18,142.32/x
  3. Step 3: Cross multiply
    33,046x = 45,603.80 × 18,142.32
  4. Step 4: Simplify right side
    33,046x = 827,358,732.82
  5. Step 5: Solve for x
    x = 827,358,732.82/33,046
  6. Step 6: Final answer
    x = 25,036.58

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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.