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Finding the Fourth Proportional to 9,898.80, 14,848.20 and 2,973.30

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Solution

The fourth proportional to 9,898.80, 14,848.20 and 2,973.30 is: 4,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.80 : 14,848.20 = 2,973.30 : x
  2. Step 2: Convert to fraction form
    9,898.80/14,848.20 = 2,973.30/x
  3. Step 3: Cross multiply
    9,898.80x = 14,848.20 × 2,973.30
  4. Step 4: Simplify right side
    9,898.80x = 44,148,153.06
  5. Step 5: Solve for x
    x = 44,148,153.06/9,898.80
  6. Step 6: Final answer
    x = 4,459.95

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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.