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Finding the Fourth Proportional to 15,570.97, 21,487.93 and 9,606.10

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Solution

The fourth proportional to 15,570.97, 21,487.93 and 9,606.10 is: 13,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.97 : 21,487.93 = 9,606.10 : x
  2. Step 2: Convert to fraction form
    15,570.97/21,487.93 = 9,606.10/x
  3. Step 3: Cross multiply
    15,570.97x = 21,487.93 × 9,606.10
  4. Step 4: Simplify right side
    15,570.97x = 206,415,220.96
  5. Step 5: Solve for x
    x = 206,415,220.96/15,570.97
  6. Step 6: Final answer
    x = 13,256.42

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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.