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Finding the Fourth Proportional to 8,952.90, 13,429.35 and 8,573.70

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Solution

The fourth proportional to 8,952.90, 13,429.35 and 8,573.70 is: 12,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,952.90 : 13,429.35 = 8,573.70 : x
  2. Step 2: Convert to fraction form
    8,952.90/13,429.35 = 8,573.70/x
  3. Step 3: Cross multiply
    8,952.90x = 13,429.35 × 8,573.70
  4. Step 4: Simplify right side
    8,952.90x = 115,139,218.10
  5. Step 5: Solve for x
    x = 115,139,218.10/8,952.90
  6. Step 6: Final answer
    x = 12,860.55

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Double scale
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Similar ratio
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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.