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Finding the Fourth Proportional to 14,353.92, 21,535.20 and 6,962.40

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Solution

The fourth proportional to 14,353.92, 21,535.20 and 6,962.40 is: 10,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.92 : 21,535.20 = 6,962.40 : x
  2. Step 2: Convert to fraction form
    14,353.92/21,535.20 = 6,962.40/x
  3. Step 3: Cross multiply
    14,353.92x = 21,535.20 × 6,962.40
  4. Step 4: Simplify right side
    14,353.92x = 149,936,676.48
  5. Step 5: Solve for x
    x = 149,936,676.48/14,353.92
  6. Step 6: Final answer
    x = 10,445.70

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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.