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Finding the Fourth Proportional to 7,644.78, 10,549.91 and 4,457.99

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Solution

The fourth proportional to 7,644.78, 10,549.91 and 4,457.99 is: 6,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,644.78 : 10,549.91 = 4,457.99 : x
  2. Step 2: Convert to fraction form
    7,644.78/10,549.91 = 4,457.99/x
  3. Step 3: Cross multiply
    7,644.78x = 10,549.91 × 4,457.99
  4. Step 4: Simplify right side
    7,644.78x = 47,031,318.24
  5. Step 5: Solve for x
    x = 47,031,318.24/7,644.78
  6. Step 6: Final answer
    x = 6,152.08

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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.