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Finding the Fourth Proportional to 10,590.60, 15,885.90 and 6,205.80

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Solution

The fourth proportional to 10,590.60, 15,885.90 and 6,205.80 is: 9,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,590.60 : 15,885.90 = 6,205.80 : x
  2. Step 2: Convert to fraction form
    10,590.60/15,885.90 = 6,205.80/x
  3. Step 3: Cross multiply
    10,590.60x = 15,885.90 × 6,205.80
  4. Step 4: Simplify right side
    10,590.60x = 98,584,718.22
  5. Step 5: Solve for x
    x = 98,584,718.22/10,590.60
  6. Step 6: Final answer
    x = 9,308.70

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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.