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Finding the Fourth Proportional to 15,835.33, 21,851.67 and 8,762.01

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Solution

The fourth proportional to 15,835.33, 21,851.67 and 8,762.01 is: 12,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.33 : 21,851.67 = 8,762.01 : x
  2. Step 2: Convert to fraction form
    15,835.33/21,851.67 = 8,762.01/x
  3. Step 3: Cross multiply
    15,835.33x = 21,851.67 × 8,762.01
  4. Step 4: Simplify right side
    15,835.33x = 191,464,551.06
  5. Step 5: Solve for x
    x = 191,464,551.06/15,835.33
  6. Step 6: Final answer
    x = 12,090.97

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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.