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Finding the Fourth Proportional to 10,347.77, 15,518.89 and 4,503

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Solution

The fourth proportional to 10,347.77, 15,518.89 and 4,503 is: 6,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.77 : 15,518.89 = 4,503 : x
  2. Step 2: Convert to fraction form
    10,347.77/15,518.89 = 4,503/x
  3. Step 3: Cross multiply
    10,347.77x = 15,518.89 × 4,503
  4. Step 4: Simplify right side
    10,347.77x = 69,881,561.67
  5. Step 5: Solve for x
    x = 69,881,561.67/10,347.77
  6. Step 6: Final answer
    x = 6,753.30

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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.