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Finding the Fourth Proportional to 8,714.57, 13,070.46 and 7,243.23

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Solution

The fourth proportional to 8,714.57, 13,070.46 and 7,243.23 is: 10,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.57 : 13,070.46 = 7,243.23 : x
  2. Step 2: Convert to fraction form
    8,714.57/13,070.46 = 7,243.23/x
  3. Step 3: Cross multiply
    8,714.57x = 13,070.46 × 7,243.23
  4. Step 4: Simplify right side
    8,714.57x = 94,672,347.99
  5. Step 5: Solve for x
    x = 94,672,347.99/8,714.57
  6. Step 6: Final answer
    x = 10,863.69

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Half scale
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Double scale
Find fourth proportional to 8,715.57, 13,071.96 and 7,244.23
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.