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Finding the Fourth Proportional to 92,657, 127,880.39 and 58,668.65

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Solution

The fourth proportional to 92,657, 127,880.39 and 58,668.65 is: 80,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,657 : 127,880.39 = 58,668.65 : x
  2. Step 2: Convert to fraction form
    92,657/127,880.39 = 58,668.65/x
  3. Step 3: Cross multiply
    92,657x = 127,880.39 × 58,668.65
  4. Step 4: Simplify right side
    92,657x = 7,502,569,842.77
  5. Step 5: Solve for x
    x = 7,502,569,842.77/92,657
  6. Step 6: Final answer
    x = 80,971.43

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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.