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Finding the Fourth Proportional to 15,597.84, 21,525.89 and 10,288.89

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Solution

The fourth proportional to 15,597.84, 21,525.89 and 10,288.89 is: 14,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.84 : 21,525.89 = 10,288.89 : x
  2. Step 2: Convert to fraction form
    15,597.84/21,525.89 = 10,288.89/x
  3. Step 3: Cross multiply
    15,597.84x = 21,525.89 × 10,288.89
  4. Step 4: Simplify right side
    15,597.84x = 221,477,514.36
  5. Step 5: Solve for x
    x = 221,477,514.36/15,597.84
  6. Step 6: Final answer
    x = 14,199.24

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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.