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Finding the Fourth Proportional to 25,603.52, 38,396.04 and 9,812.98

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Solution

The fourth proportional to 25,603.52, 38,396.04 and 9,812.98 is: 14,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.52 : 38,396.04 = 9,812.98 : x
  2. Step 2: Convert to fraction form
    25,603.52/38,396.04 = 9,812.98/x
  3. Step 3: Cross multiply
    25,603.52x = 38,396.04 × 9,812.98
  4. Step 4: Simplify right side
    25,603.52x = 376,779,572.60
  5. Step 5: Solve for x
    x = 376,779,572.60/25,603.52
  6. Step 6: Final answer
    x = 14,715.93

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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.