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Finding the Fourth Proportional to 15,328.80, 22,985.10 and 6,553.80

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Solution

The fourth proportional to 15,328.80, 22,985.10 and 6,553.80 is: 9,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.80 : 22,985.10 = 6,553.80 : x
  2. Step 2: Convert to fraction form
    15,328.80/22,985.10 = 6,553.80/x
  3. Step 3: Cross multiply
    15,328.80x = 22,985.10 × 6,553.80
  4. Step 4: Simplify right side
    15,328.80x = 150,639,748.38
  5. Step 5: Solve for x
    x = 150,639,748.38/15,328.80
  6. Step 6: Final answer
    x = 9,827.24

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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.