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Finding the Fourth Proportional to 8,926.27, 12,312.48 and 7,034.92

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Solution

The fourth proportional to 8,926.27, 12,312.48 and 7,034.92 is: 9,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.27 : 12,312.48 = 7,034.92 : x
  2. Step 2: Convert to fraction form
    8,926.27/12,312.48 = 7,034.92/x
  3. Step 3: Cross multiply
    8,926.27x = 12,312.48 × 7,034.92
  4. Step 4: Simplify right side
    8,926.27x = 86,617,311.80
  5. Step 5: Solve for x
    x = 86,617,311.80/8,926.27
  6. Step 6: Final answer
    x = 9,703.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.