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Finding the Fourth Proportional to 78,592.88, 117,907.14 and 26,002.28

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Solution

The fourth proportional to 78,592.88, 117,907.14 and 26,002.28 is: 39,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,592.88 : 117,907.14 = 26,002.28 : x
  2. Step 2: Convert to fraction form
    78,592.88/117,907.14 = 26,002.28/x
  3. Step 3: Cross multiply
    78,592.88x = 117,907.14 × 26,002.28
  4. Step 4: Simplify right side
    78,592.88x = 3,065,854,468.28
  5. Step 5: Solve for x
    x = 3,065,854,468.28/78,592.88
  6. Step 6: Final answer
    x = 39,009.32

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1.5x scale

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.