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Finding the Fourth Proportional to 9,492.80, 14,239.20 and 4,308.80

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Solution

The fourth proportional to 9,492.80, 14,239.20 and 4,308.80 is: 6,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,492.80 : 14,239.20 = 4,308.80 : x
  2. Step 2: Convert to fraction form
    9,492.80/14,239.20 = 4,308.80/x
  3. Step 3: Cross multiply
    9,492.80x = 14,239.20 × 4,308.80
  4. Step 4: Simplify right side
    9,492.80x = 61,353,864.96
  5. Step 5: Solve for x
    x = 61,353,864.96/9,492.80
  6. Step 6: Final answer
    x = 6,463.20

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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.