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Finding the Fourth Proportional to 15,763.12, 21,752.82 and 8,593.10

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Solution

The fourth proportional to 15,763.12, 21,752.82 and 8,593.10 is: 11,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.12 : 21,752.82 = 8,593.10 : x
  2. Step 2: Convert to fraction form
    15,763.12/21,752.82 = 8,593.10/x
  3. Step 3: Cross multiply
    15,763.12x = 21,752.82 × 8,593.10
  4. Step 4: Simplify right side
    15,763.12x = 186,924,130.35
  5. Step 5: Solve for x
    x = 186,924,130.35/15,763.12
  6. Step 6: Final answer
    x = 11,858.32

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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.