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Finding the Fourth Proportional to 15,602.64, 21,530.52 and 8,527.56

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Solution

The fourth proportional to 15,602.64, 21,530.52 and 8,527.56 is: 11,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.64 : 21,530.52 = 8,527.56 : x
  2. Step 2: Convert to fraction form
    15,602.64/21,530.52 = 8,527.56/x
  3. Step 3: Cross multiply
    15,602.64x = 21,530.52 × 8,527.56
  4. Step 4: Simplify right side
    15,602.64x = 183,602,801.13
  5. Step 5: Solve for x
    x = 183,602,801.13/15,602.64
  6. Step 6: Final answer
    x = 11,767.42

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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.