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Finding the Fourth Proportional to 62,492.40, 86,237.40 and 35,643.60

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Solution

The fourth proportional to 62,492.40, 86,237.40 and 35,643.60 is: 49,186.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,492.40 : 86,237.40 = 35,643.60 : x
  2. Step 2: Convert to fraction form
    62,492.40/86,237.40 = 35,643.60/x
  3. Step 3: Cross multiply
    62,492.40x = 86,237.40 × 35,643.60
  4. Step 4: Simplify right side
    62,492.40x = 3,073,811,390.64
  5. Step 5: Solve for x
    x = 3,073,811,390.64/62,492.40
  6. Step 6: Final answer
    x = 49,186.96

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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.