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Finding the Fourth Proportional to 8,962.10, 13,426.95 and 7,925.30

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Solution

The fourth proportional to 8,962.10, 13,426.95 and 7,925.30 is: 11,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.10 : 13,426.95 = 7,925.30 : x
  2. Step 2: Convert to fraction form
    8,962.10/13,426.95 = 7,925.30/x
  3. Step 3: Cross multiply
    8,962.10x = 13,426.95 × 7,925.30
  4. Step 4: Simplify right side
    8,962.10x = 106,412,606.84
  5. Step 5: Solve for x
    x = 106,412,606.84/8,962.10
  6. Step 6: Final answer
    x = 11,873.62

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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.