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Finding the Fourth Proportional to 9,913.84, 14,855.40 and 4,065.52

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Solution

The fourth proportional to 9,913.84, 14,855.40 and 4,065.52 is: 6,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.84 : 14,855.40 = 4,065.52 : x
  2. Step 2: Convert to fraction form
    9,913.84/14,855.40 = 4,065.52/x
  3. Step 3: Cross multiply
    9,913.84x = 14,855.40 × 4,065.52
  4. Step 4: Simplify right side
    9,913.84x = 60,394,925.81
  5. Step 5: Solve for x
    x = 60,394,925.81/9,913.84
  6. Step 6: Final answer
    x = 6,091.98

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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.