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Finding the Fourth Proportional to 35,455.42, 53,154.42 and 13,265.61

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Solution

The fourth proportional to 35,455.42, 53,154.42 and 13,265.61 is: 19,887.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,455.42 : 53,154.42 = 13,265.61 : x
  2. Step 2: Convert to fraction form
    35,455.42/53,154.42 = 13,265.61/x
  3. Step 3: Cross multiply
    35,455.42x = 53,154.42 × 13,265.61
  4. Step 4: Simplify right side
    35,455.42x = 705,125,805.50
  5. Step 5: Solve for x
    x = 705,125,805.50/35,455.42
  6. Step 6: Final answer
    x = 19,887.67

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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.