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Finding the Fourth Proportional to 11,472.35, 15,821.51 and 7,435.08

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Solution

The fourth proportional to 11,472.35, 15,821.51 and 7,435.08 is: 10,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.35 : 15,821.51 = 7,435.08 : x
  2. Step 2: Convert to fraction form
    11,472.35/15,821.51 = 7,435.08/x
  3. Step 3: Cross multiply
    11,472.35x = 15,821.51 × 7,435.08
  4. Step 4: Simplify right side
    11,472.35x = 117,634,155.40
  5. Step 5: Solve for x
    x = 117,634,155.40/11,472.35
  6. Step 6: Final answer
    x = 10,253.71

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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.