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Finding the Fourth Proportional to 19,810.58, 27,338.58 and 10,858.16

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Solution

The fourth proportional to 19,810.58, 27,338.58 and 10,858.16 is: 14,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.58 : 27,338.58 = 10,858.16 : x
  2. Step 2: Convert to fraction form
    19,810.58/27,338.58 = 10,858.16/x
  3. Step 3: Cross multiply
    19,810.58x = 27,338.58 × 10,858.16
  4. Step 4: Simplify right side
    19,810.58x = 296,846,675.81
  5. Step 5: Solve for x
    x = 296,846,675.81/19,810.58
  6. Step 6: Final answer
    x = 14,984.25

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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.