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Finding the Fourth Proportional to 15,328.56, 22,987.98 and 6,561.12

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Solution

The fourth proportional to 15,328.56, 22,987.98 and 6,561.12 is: 9,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.56 : 22,987.98 = 6,561.12 : x
  2. Step 2: Convert to fraction form
    15,328.56/22,987.98 = 6,561.12/x
  3. Step 3: Cross multiply
    15,328.56x = 22,987.98 × 6,561.12
  4. Step 4: Simplify right side
    15,328.56x = 150,826,895.34
  5. Step 5: Solve for x
    x = 150,826,895.34/15,328.56
  6. Step 6: Final answer
    x = 9,839.60

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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.