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Finding the Fourth Proportional to 29,459.30, 40,659.10 and 18,848.57

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Solution

The fourth proportional to 29,459.30, 40,659.10 and 18,848.57 is: 26,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,459.30 : 40,659.10 = 18,848.57 : x
  2. Step 2: Convert to fraction form
    29,459.30/40,659.10 = 18,848.57/x
  3. Step 3: Cross multiply
    29,459.30x = 40,659.10 × 18,848.57
  4. Step 4: Simplify right side
    29,459.30x = 766,365,642.07
  5. Step 5: Solve for x
    x = 766,365,642.07/29,459.30
  6. Step 6: Final answer
    x = 26,014.39

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1.5x scale

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.