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Finding the Fourth Proportional to 14,921.58, 20,588.06 and 9,610.01

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Solution

The fourth proportional to 14,921.58, 20,588.06 and 9,610.01 is: 13,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.58 : 20,588.06 = 9,610.01 : x
  2. Step 2: Convert to fraction form
    14,921.58/20,588.06 = 9,610.01/x
  3. Step 3: Cross multiply
    14,921.58x = 20,588.06 × 9,610.01
  4. Step 4: Simplify right side
    14,921.58x = 197,851,311.49
  5. Step 5: Solve for x
    x = 197,851,311.49/14,921.58
  6. Step 6: Final answer
    x = 13,259.41

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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.