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Finding the Fourth Proportional to 71,048.94, 98,004.49 and 42,349.47

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Solution

The fourth proportional to 71,048.94, 98,004.49 and 42,349.47 is: 58,416.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,048.94 : 98,004.49 = 42,349.47 : x
  2. Step 2: Convert to fraction form
    71,048.94/98,004.49 = 42,349.47/x
  3. Step 3: Cross multiply
    71,048.94x = 98,004.49 × 42,349.47
  4. Step 4: Simplify right side
    71,048.94x = 4,150,438,209.12
  5. Step 5: Solve for x
    x = 4,150,438,209.12/71,048.94
  6. Step 6: Final answer
    x = 58,416.61

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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.