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Finding the Fourth Proportional to 9,865.80, 14,798.70 and 6,366.60

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Solution

The fourth proportional to 9,865.80, 14,798.70 and 6,366.60 is: 9,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.80 : 14,798.70 = 6,366.60 : x
  2. Step 2: Convert to fraction form
    9,865.80/14,798.70 = 6,366.60/x
  3. Step 3: Cross multiply
    9,865.80x = 14,798.70 × 6,366.60
  4. Step 4: Simplify right side
    9,865.80x = 94,217,403.42
  5. Step 5: Solve for x
    x = 94,217,403.42/9,865.80
  6. Step 6: Final answer
    x = 9,549.90

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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.