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Finding the Fourth Proportional to 11,655.76, 16,090.48 and 7,466.48

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Solution

The fourth proportional to 11,655.76, 16,090.48 and 7,466.48 is: 10,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.76 : 16,090.48 = 7,466.48 : x
  2. Step 2: Convert to fraction form
    11,655.76/16,090.48 = 7,466.48/x
  3. Step 3: Cross multiply
    11,655.76x = 16,090.48 × 7,466.48
  4. Step 4: Simplify right side
    11,655.76x = 120,139,247.11
  5. Step 5: Solve for x
    x = 120,139,247.11/11,655.76
  6. Step 6: Final answer
    x = 10,307.29

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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.