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Finding the Fourth Proportional to 17,985.60, 24,830.52 and 13,703.04

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Solution

The fourth proportional to 17,985.60, 24,830.52 and 13,703.04 is: 18,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.60 : 24,830.52 = 13,703.04 : x
  2. Step 2: Convert to fraction form
    17,985.60/24,830.52 = 13,703.04/x
  3. Step 3: Cross multiply
    17,985.60x = 24,830.52 × 13,703.04
  4. Step 4: Simplify right side
    17,985.60x = 340,253,608.78
  5. Step 5: Solve for x
    x = 340,253,608.78/17,985.60
  6. Step 6: Final answer
    x = 18,918.11

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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.