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Finding the Fourth Proportional to 15,253.80, 22,895.10 and 9,421.80

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Solution

The fourth proportional to 15,253.80, 22,895.10 and 9,421.80 is: 14,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.80 : 22,895.10 = 9,421.80 : x
  2. Step 2: Convert to fraction form
    15,253.80/22,895.10 = 9,421.80/x
  3. Step 3: Cross multiply
    15,253.80x = 22,895.10 × 9,421.80
  4. Step 4: Simplify right side
    15,253.80x = 215,713,053.18
  5. Step 5: Solve for x
    x = 215,713,053.18/15,253.80
  6. Step 6: Final answer
    x = 14,141.59

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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.