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Finding the Fourth Proportional to 67,637.80, 101,456.70 and 30,701.80

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Solution

The fourth proportional to 67,637.80, 101,456.70 and 30,701.80 is: 46,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,637.80 : 101,456.70 = 30,701.80 : x
  2. Step 2: Convert to fraction form
    67,637.80/101,456.70 = 30,701.80/x
  3. Step 3: Cross multiply
    67,637.80x = 101,456.70 × 30,701.80
  4. Step 4: Simplify right side
    67,637.80x = 3,114,903,312.06
  5. Step 5: Solve for x
    x = 3,114,903,312.06/67,637.80
  6. Step 6: Final answer
    x = 46,052.70

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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.