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Finding the Fourth Proportional to 17,888.58, 26,852.31 and 15,128.10

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Solution

The fourth proportional to 17,888.58, 26,852.31 and 15,128.10 is: 22,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.58 : 26,852.31 = 15,128.10 : x
  2. Step 2: Convert to fraction form
    17,888.58/26,852.31 = 15,128.10/x
  3. Step 3: Cross multiply
    17,888.58x = 26,852.31 × 15,128.10
  4. Step 4: Simplify right side
    17,888.58x = 406,224,430.91
  5. Step 5: Solve for x
    x = 406,224,430.91/17,888.58
  6. Step 6: Final answer
    x = 22,708.59

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1.5x scale

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.