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Finding the Fourth Proportional to 29,703.06, 40,980.13 and 16,947.08

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Solution

The fourth proportional to 29,703.06, 40,980.13 and 16,947.08 is: 23,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,703.06 : 40,980.13 = 16,947.08 : x
  2. Step 2: Convert to fraction form
    29,703.06/40,980.13 = 16,947.08/x
  3. Step 3: Cross multiply
    29,703.06x = 40,980.13 × 16,947.08
  4. Step 4: Simplify right side
    29,703.06x = 694,493,541.52
  5. Step 5: Solve for x
    x = 694,493,541.52/29,703.06
  6. Step 6: Final answer
    x = 23,381.21

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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.