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Finding the Fourth Proportional to 45,503.76, 62,790.12 and 25,359.12

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Solution

The fourth proportional to 45,503.76, 62,790.12 and 25,359.12 is: 34,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,503.76 : 62,790.12 = 25,359.12 : x
  2. Step 2: Convert to fraction form
    45,503.76/62,790.12 = 25,359.12/x
  3. Step 3: Cross multiply
    45,503.76x = 62,790.12 × 25,359.12
  4. Step 4: Simplify right side
    45,503.76x = 1,592,302,187.89
  5. Step 5: Solve for x
    x = 1,592,302,187.89/45,503.76
  6. Step 6: Final answer
    x = 34,992.76

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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.