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Finding the Fourth Proportional to 9,888.60, 14,819.94 and 4,038.51

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Solution

The fourth proportional to 9,888.60, 14,819.94 and 4,038.51 is: 6,052.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.60 : 14,819.94 = 4,038.51 : x
  2. Step 2: Convert to fraction form
    9,888.60/14,819.94 = 4,038.51/x
  3. Step 3: Cross multiply
    9,888.60x = 14,819.94 × 4,038.51
  4. Step 4: Simplify right side
    9,888.60x = 59,850,475.89
  5. Step 5: Solve for x
    x = 59,850,475.89/9,888.60
  6. Step 6: Final answer
    x = 6,052.47

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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.