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Finding the Fourth Proportional to 9,900.47, 14,848.85 and 4,968.79

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Solution

The fourth proportional to 9,900.47, 14,848.85 and 4,968.79 is: 7,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.47 : 14,848.85 = 4,968.79 : x
  2. Step 2: Convert to fraction form
    9,900.47/14,848.85 = 4,968.79/x
  3. Step 3: Cross multiply
    9,900.47x = 14,848.85 × 4,968.79
  4. Step 4: Simplify right side
    9,900.47x = 73,780,718.30
  5. Step 5: Solve for x
    x = 73,780,718.30/9,900.47
  6. Step 6: Final answer
    x = 7,452.24

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1.5x scale

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.