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Finding the Fourth Proportional to 7,644.70, 10,549.11 and 4,500.70

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Solution

The fourth proportional to 7,644.70, 10,549.11 and 4,500.70 is: 6,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,644.70 : 10,549.11 = 4,500.70 : x
  2. Step 2: Convert to fraction form
    7,644.70/10,549.11 = 4,500.70/x
  3. Step 3: Cross multiply
    7,644.70x = 10,549.11 × 4,500.70
  4. Step 4: Simplify right side
    7,644.70x = 47,478,379.38
  5. Step 5: Solve for x
    x = 47,478,379.38/7,644.70
  6. Step 6: Final answer
    x = 6,210.63

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Half scale
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Double scale
Find fourth proportional to 7,645.70, 10,550.49 and 4,501.70
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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.