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Finding the Fourth Proportional to 47,430.88, 70,991.88 and 34,945.90

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Solution

The fourth proportional to 47,430.88, 70,991.88 and 34,945.90 is: 52,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.88 : 70,991.88 = 34,945.90 : x
  2. Step 2: Convert to fraction form
    47,430.88/70,991.88 = 34,945.90/x
  3. Step 3: Cross multiply
    47,430.88x = 70,991.88 × 34,945.90
  4. Step 4: Simplify right side
    47,430.88x = 2,480,875,139.29
  5. Step 5: Solve for x
    x = 2,480,875,139.29/47,430.88
  6. Step 6: Final answer
    x = 52,305.06

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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.