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Finding the Fourth Proportional to 29,703.26, 40,980.42 and 16,947.28

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Solution

The fourth proportional to 29,703.26, 40,980.42 and 16,947.28 is: 23,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,703.26 : 40,980.42 = 16,947.28 : x
  2. Step 2: Convert to fraction form
    29,703.26/40,980.42 = 16,947.28/x
  3. Step 3: Cross multiply
    29,703.26x = 40,980.42 × 16,947.28
  4. Step 4: Simplify right side
    29,703.26x = 694,506,652.26
  5. Step 5: Solve for x
    x = 694,506,652.26/29,703.26
  6. Step 6: Final answer
    x = 23,381.50

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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.