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Finding the Fourth Proportional to 9,683.70, 14,525.55 and 6,403.20

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Solution

The fourth proportional to 9,683.70, 14,525.55 and 6,403.20 is: 9,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,683.70 : 14,525.55 = 6,403.20 : x
  2. Step 2: Convert to fraction form
    9,683.70/14,525.55 = 6,403.20/x
  3. Step 3: Cross multiply
    9,683.70x = 14,525.55 × 6,403.20
  4. Step 4: Simplify right side
    9,683.70x = 93,010,001.76
  5. Step 5: Solve for x
    x = 93,010,001.76/9,683.70
  6. Step 6: Final answer
    x = 9,604.80

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Half scale
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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.