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Finding the Fourth Proportional to 18,852.58, 28,063.35 and 18,572.32

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Solution

The fourth proportional to 18,852.58, 28,063.35 and 18,572.32 is: 27,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.58 : 28,063.35 = 18,572.32 : x
  2. Step 2: Convert to fraction form
    18,852.58/28,063.35 = 18,572.32/x
  3. Step 3: Cross multiply
    18,852.58x = 28,063.35 × 18,572.32
  4. Step 4: Simplify right side
    18,852.58x = 521,201,516.47
  5. Step 5: Solve for x
    x = 521,201,516.47/18,852.58
  6. Step 6: Final answer
    x = 27,646.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.