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Finding the Fourth Proportional to 42,751.81, 64,093.13 and 17,810.60

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Solution

The fourth proportional to 42,751.81, 64,093.13 and 17,810.60 is: 26,701.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,751.81 : 64,093.13 = 17,810.60 : x
  2. Step 2: Convert to fraction form
    42,751.81/64,093.13 = 17,810.60/x
  3. Step 3: Cross multiply
    42,751.81x = 64,093.13 × 17,810.60
  4. Step 4: Simplify right side
    42,751.81x = 1,141,537,101.18
  5. Step 5: Solve for x
    x = 1,141,537,101.18/42,751.81
  6. Step 6: Final answer
    x = 26,701.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.