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Finding the Fourth Proportional to 7,929.90, 11,894.85 and 5,004.18

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Solution

The fourth proportional to 7,929.90, 11,894.85 and 5,004.18 is: 7,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.90 : 11,894.85 = 5,004.18 : x
  2. Step 2: Convert to fraction form
    7,929.90/11,894.85 = 5,004.18/x
  3. Step 3: Cross multiply
    7,929.90x = 11,894.85 × 5,004.18
  4. Step 4: Simplify right side
    7,929.90x = 59,523,970.47
  5. Step 5: Solve for x
    x = 59,523,970.47/7,929.90
  6. Step 6: Final answer
    x = 7,506.27

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Similar ratio
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1.5x scale

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.