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Finding the Fourth Proportional to 48,346, 66,717.50 and 29,487.04

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Solution

The fourth proportional to 48,346, 66,717.50 and 29,487.04 is: 40,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,346 : 66,717.50 = 29,487.04 : x
  2. Step 2: Convert to fraction form
    48,346/66,717.50 = 29,487.04/x
  3. Step 3: Cross multiply
    48,346x = 66,717.50 × 29,487.04
  4. Step 4: Simplify right side
    48,346x = 1,967,301,591.20
  5. Step 5: Solve for x
    x = 1,967,301,591.20/48,346
  6. Step 6: Final answer
    x = 40,692.13

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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.