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Finding the Fourth Proportional to 35,246.80, 52,870.20 and 11,870.80

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Solution

The fourth proportional to 35,246.80, 52,870.20 and 11,870.80 is: 17,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,246.80 : 52,870.20 = 11,870.80 : x
  2. Step 2: Convert to fraction form
    35,246.80/52,870.20 = 11,870.80/x
  3. Step 3: Cross multiply
    35,246.80x = 52,870.20 × 11,870.80
  4. Step 4: Simplify right side
    35,246.80x = 627,611,570.16
  5. Step 5: Solve for x
    x = 627,611,570.16/35,246.80
  6. Step 6: Final answer
    x = 17,806.20

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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.