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Finding the Fourth Proportional to 30,697.80, 45,972.72 and 17,510.19

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Solution

The fourth proportional to 30,697.80, 45,972.72 and 17,510.19 is: 26,223.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,697.80 : 45,972.72 = 17,510.19 : x
  2. Step 2: Convert to fraction form
    30,697.80/45,972.72 = 17,510.19/x
  3. Step 3: Cross multiply
    30,697.80x = 45,972.72 × 17,510.19
  4. Step 4: Simplify right side
    30,697.80x = 804,991,062.02
  5. Step 5: Solve for x
    x = 804,991,062.02/30,697.80
  6. Step 6: Final answer
    x = 26,223.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.