Home / 18,526.74-25,570.67-12,560.32

Finding the Fourth Proportional to 18,526.74, 25,570.67 and 12,560.32

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Solution

The fourth proportional to 18,526.74, 25,570.67 and 12,560.32 is: 17,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.74 : 25,570.67 = 12,560.32 : x
  2. Step 2: Convert to fraction form
    18,526.74/25,570.67 = 12,560.32/x
  3. Step 3: Cross multiply
    18,526.74x = 25,570.67 × 12,560.32
  4. Step 4: Simplify right side
    18,526.74x = 321,175,797.81
  5. Step 5: Solve for x
    x = 321,175,797.81/18,526.74
  6. Step 6: Final answer
    x = 17,335.80

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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.