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Finding the Fourth Proportional to 29,690.48, 40,971.12 and 16,259.06

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Solution

The fourth proportional to 29,690.48, 40,971.12 and 16,259.06 is: 22,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,690.48 : 40,971.12 = 16,259.06 : x
  2. Step 2: Convert to fraction form
    29,690.48/40,971.12 = 16,259.06/x
  3. Step 3: Cross multiply
    29,690.48x = 40,971.12 × 16,259.06
  4. Step 4: Simplify right side
    29,690.48x = 666,151,939.80
  5. Step 5: Solve for x
    x = 666,151,939.80/29,690.48
  6. Step 6: Final answer
    x = 22,436.55

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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.