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Finding the Fourth Proportional to 9,812.84, 14,707.98 and 4,885.88

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Solution

The fourth proportional to 9,812.84, 14,707.98 and 4,885.88 is: 7,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,812.84 : 14,707.98 = 4,885.88 : x
  2. Step 2: Convert to fraction form
    9,812.84/14,707.98 = 4,885.88/x
  3. Step 3: Cross multiply
    9,812.84x = 14,707.98 × 4,885.88
  4. Step 4: Simplify right side
    9,812.84x = 71,861,425.32
  5. Step 5: Solve for x
    x = 71,861,425.32/9,812.84
  6. Step 6: Final answer
    x = 7,323.20

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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.