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Finding the Fourth Proportional to 15,126.60, 22,655.34 and 8,957.64

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Solution

The fourth proportional to 15,126.60, 22,655.34 and 8,957.64 is: 13,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.60 : 22,655.34 = 8,957.64 : x
  2. Step 2: Convert to fraction form
    15,126.60/22,655.34 = 8,957.64/x
  3. Step 3: Cross multiply
    15,126.60x = 22,655.34 × 8,957.64
  4. Step 4: Simplify right side
    15,126.60x = 202,938,379.80
  5. Step 5: Solve for x
    x = 202,938,379.80/15,126.60
  6. Step 6: Final answer
    x = 13,415.99

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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.