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Finding the Fourth Proportional to 11,365.55, 17,045.67 and 4,342.98

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Solution

The fourth proportional to 11,365.55, 17,045.67 and 4,342.98 is: 6,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.55 : 17,045.67 = 4,342.98 : x
  2. Step 2: Convert to fraction form
    11,365.55/17,045.67 = 4,342.98/x
  3. Step 3: Cross multiply
    11,365.55x = 17,045.67 × 4,342.98
  4. Step 4: Simplify right side
    11,365.55x = 74,029,084.10
  5. Step 5: Solve for x
    x = 74,029,084.10/11,365.55
  6. Step 6: Final answer
    x = 6,513.46

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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.