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Finding the Fourth Proportional to 47,319.04, 70,978.56 and 26,557.12

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Solution

The fourth proportional to 47,319.04, 70,978.56 and 26,557.12 is: 39,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,319.04 : 70,978.56 = 26,557.12 : x
  2. Step 2: Convert to fraction form
    47,319.04/70,978.56 = 26,557.12/x
  3. Step 3: Cross multiply
    47,319.04x = 70,978.56 × 26,557.12
  4. Step 4: Simplify right side
    47,319.04x = 1,884,986,135.35
  5. Step 5: Solve for x
    x = 1,884,986,135.35/47,319.04
  6. Step 6: Final answer
    x = 39,835.68

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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.