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Finding the Fourth Proportional to 60,838.39, 91,276.10 and 28,842.08

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Solution

The fourth proportional to 60,838.39, 91,276.10 and 28,842.08 is: 43,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,838.39 : 91,276.10 = 28,842.08 : x
  2. Step 2: Convert to fraction form
    60,838.39/91,276.10 = 28,842.08/x
  3. Step 3: Cross multiply
    60,838.39x = 91,276.10 × 28,842.08
  4. Step 4: Simplify right side
    60,838.39x = 2,632,592,085.85
  5. Step 5: Solve for x
    x = 2,632,592,085.85/60,838.39
  6. Step 6: Final answer
    x = 43,271.89

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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.