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Finding the Fourth Proportional to 11,465.56, 15,804.18 and 9,038.96

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Solution

The fourth proportional to 11,465.56, 15,804.18 and 9,038.96 is: 12,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.56 : 15,804.18 = 9,038.96 : x
  2. Step 2: Convert to fraction form
    11,465.56/15,804.18 = 9,038.96/x
  3. Step 3: Cross multiply
    11,465.56x = 15,804.18 × 9,038.96
  4. Step 4: Simplify right side
    11,465.56x = 142,853,350.85
  5. Step 5: Solve for x
    x = 142,853,350.85/11,465.56
  6. Step 6: Final answer
    x = 12,459.34

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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.