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Finding the Fourth Proportional to 42,603.44, 63,905.16 and 14,894.96

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Solution

The fourth proportional to 42,603.44, 63,905.16 and 14,894.96 is: 22,342.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,603.44 : 63,905.16 = 14,894.96 : x
  2. Step 2: Convert to fraction form
    42,603.44/63,905.16 = 14,894.96/x
  3. Step 3: Cross multiply
    42,603.44x = 63,905.16 × 14,894.96
  4. Step 4: Simplify right side
    42,603.44x = 951,864,801.99
  5. Step 5: Solve for x
    x = 951,864,801.99/42,603.44
  6. Step 6: Final answer
    x = 22,342.44

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Double scale
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Similar ratio
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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.