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Finding the Fourth Proportional to 9,963.03, 14,931.46 and 4,690.89

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Solution

The fourth proportional to 9,963.03, 14,931.46 and 4,690.89 is: 7,030.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.03 : 14,931.46 = 4,690.89 : x
  2. Step 2: Convert to fraction form
    9,963.03/14,931.46 = 4,690.89/x
  3. Step 3: Cross multiply
    9,963.03x = 14,931.46 × 4,690.89
  4. Step 4: Simplify right side
    9,963.03x = 70,041,815.88
  5. Step 5: Solve for x
    x = 70,041,815.88/9,963.03
  6. Step 6: Final answer
    x = 7,030.17

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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.