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Finding the Fourth Proportional to 38,242.76, 52,774.95 and 21,248.57

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Solution

The fourth proportional to 38,242.76, 52,774.95 and 21,248.57 is: 29,322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,242.76 : 52,774.95 = 21,248.57 : x
  2. Step 2: Convert to fraction form
    38,242.76/52,774.95 = 21,248.57/x
  3. Step 3: Cross multiply
    38,242.76x = 52,774.95 × 21,248.57
  4. Step 4: Simplify right side
    38,242.76x = 1,121,391,955.45
  5. Step 5: Solve for x
    x = 1,121,391,955.45/38,242.76
  6. Step 6: Final answer
    x = 29,322.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.