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Finding the Fourth Proportional to 29,409.10, 40,584.84 and 15,980.46

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Solution

The fourth proportional to 29,409.10, 40,584.84 and 15,980.46 is: 22,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,409.10 : 40,584.84 = 15,980.46 : x
  2. Step 2: Convert to fraction form
    29,409.10/40,584.84 = 15,980.46/x
  3. Step 3: Cross multiply
    29,409.10x = 40,584.84 × 15,980.46
  4. Step 4: Simplify right side
    29,409.10x = 648,564,412.23
  5. Step 5: Solve for x
    x = 648,564,412.23/29,409.10
  6. Step 6: Final answer
    x = 22,053.19

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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.