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Finding the Fourth Proportional to 29,686.60, 40,968.44 and 16,259.14

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Solution

The fourth proportional to 29,686.60, 40,968.44 and 16,259.14 is: 22,438.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686.60 : 40,968.44 = 16,259.14 : x
  2. Step 2: Convert to fraction form
    29,686.60/40,968.44 = 16,259.14/x
  3. Step 3: Cross multiply
    29,686.60x = 40,968.44 × 16,259.14
  4. Step 4: Simplify right side
    29,686.60x = 666,111,601.54
  5. Step 5: Solve for x
    x = 666,111,601.54/29,686.60
  6. Step 6: Final answer
    x = 22,438.12

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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.