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Finding the Fourth Proportional to 10,292, 14,212.70 and 7,492.64

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Solution

The fourth proportional to 10,292, 14,212.70 and 7,492.64 is: 10,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,292 : 14,212.70 = 7,492.64 : x
  2. Step 2: Convert to fraction form
    10,292/14,212.70 = 7,492.64/x
  3. Step 3: Cross multiply
    10,292x = 14,212.70 × 7,492.64
  4. Step 4: Simplify right side
    10,292x = 106,490,644.53
  5. Step 5: Solve for x
    x = 106,490,644.53/10,292
  6. Step 6: Final answer
    x = 10,346.93

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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.