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Finding the Fourth Proportional to 62,603.40, 93,905.28 and 15,856.32

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Solution

The fourth proportional to 62,603.40, 93,905.28 and 15,856.32 is: 23,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,603.40 : 93,905.28 = 15,856.32 : x
  2. Step 2: Convert to fraction form
    62,603.40/93,905.28 = 15,856.32/x
  3. Step 3: Cross multiply
    62,603.40x = 93,905.28 × 15,856.32
  4. Step 4: Simplify right side
    62,603.40x = 1,488,992,169.37
  5. Step 5: Solve for x
    x = 1,488,992,169.37/62,603.40
  6. Step 6: Final answer
    x = 23,784.53

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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.