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Finding the Fourth Proportional to 9,824.70, 14,715.45 and 8,528.70

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Solution

The fourth proportional to 9,824.70, 14,715.45 and 8,528.70 is: 12,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,824.70 : 14,715.45 = 8,528.70 : x
  2. Step 2: Convert to fraction form
    9,824.70/14,715.45 = 8,528.70/x
  3. Step 3: Cross multiply
    9,824.70x = 14,715.45 × 8,528.70
  4. Step 4: Simplify right side
    9,824.70x = 125,503,658.42
  5. Step 5: Solve for x
    x = 125,503,658.42/9,824.70
  6. Step 6: Final answer
    x = 12,774.30

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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.