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Finding the Fourth Proportional to 56,843.04, 78,430.08 and 34,174.56

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Solution

The fourth proportional to 56,843.04, 78,430.08 and 34,174.56 is: 47,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,843.04 : 78,430.08 = 34,174.56 : x
  2. Step 2: Convert to fraction form
    56,843.04/78,430.08 = 34,174.56/x
  3. Step 3: Cross multiply
    56,843.04x = 78,430.08 × 34,174.56
  4. Step 4: Simplify right side
    56,843.04x = 2,680,313,474.76
  5. Step 5: Solve for x
    x = 2,680,313,474.76/56,843.04
  6. Step 6: Final answer
    x = 47,152.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.