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Finding the Fourth Proportional to 20,059.01, 27,681.86 and 10,984.76

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Solution

The fourth proportional to 20,059.01, 27,681.86 and 10,984.76 is: 15,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.01 : 27,681.86 = 10,984.76 : x
  2. Step 2: Convert to fraction form
    20,059.01/27,681.86 = 10,984.76/x
  3. Step 3: Cross multiply
    20,059.01x = 27,681.86 × 10,984.76
  4. Step 4: Simplify right side
    20,059.01x = 304,078,477.51
  5. Step 5: Solve for x
    x = 304,078,477.51/20,059.01
  6. Step 6: Final answer
    x = 15,159.19

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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.