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Finding the Fourth Proportional to 8,962.60, 13,446.30 and 7,995.40

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Solution

The fourth proportional to 8,962.60, 13,446.30 and 7,995.40 is: 11,995.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.60 : 13,446.30 = 7,995.40 : x
  2. Step 2: Convert to fraction form
    8,962.60/13,446.30 = 7,995.40/x
  3. Step 3: Cross multiply
    8,962.60x = 13,446.30 × 7,995.40
  4. Step 4: Simplify right side
    8,962.60x = 107,508,547.02
  5. Step 5: Solve for x
    x = 107,508,547.02/8,962.60
  6. Step 6: Final answer
    x = 11,995.24

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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.