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Finding the Fourth Proportional to 42,503.12, 63,783.72 and 14,801.12

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Solution

The fourth proportional to 42,503.12, 63,783.72 and 14,801.12 is: 22,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,503.12 : 63,783.72 = 14,801.12 : x
  2. Step 2: Convert to fraction form
    42,503.12/63,783.72 = 14,801.12/x
  3. Step 3: Cross multiply
    42,503.12x = 63,783.72 × 14,801.12
  4. Step 4: Simplify right side
    42,503.12x = 944,070,493.77
  5. Step 5: Solve for x
    x = 944,070,493.77/42,503.12
  6. Step 6: Final answer
    x = 22,211.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.