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Finding the Fourth Proportional to 11,084.59, 15,291.90 and 7,302.90

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Solution

The fourth proportional to 11,084.59, 15,291.90 and 7,302.90 is: 10,074.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,084.59 : 15,291.90 = 7,302.90 : x
  2. Step 2: Convert to fraction form
    11,084.59/15,291.90 = 7,302.90/x
  3. Step 3: Cross multiply
    11,084.59x = 15,291.90 × 7,302.90
  4. Step 4: Simplify right side
    11,084.59x = 111,675,216.51
  5. Step 5: Solve for x
    x = 111,675,216.51/11,084.59
  6. Step 6: Final answer
    x = 10,074.82

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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.