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Finding the Fourth Proportional to 12,674.40, 17,454.64 and 12,403.04

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Solution

The fourth proportional to 12,674.40, 17,454.64 and 12,403.04 is: 17,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.40 : 17,454.64 = 12,403.04 : x
  2. Step 2: Convert to fraction form
    12,674.40/17,454.64 = 12,403.04/x
  3. Step 3: Cross multiply
    12,674.40x = 17,454.64 × 12,403.04
  4. Step 4: Simplify right side
    12,674.40x = 216,490,598.11
  5. Step 5: Solve for x
    x = 216,490,598.11/12,674.40
  6. Step 6: Final answer
    x = 17,080.93

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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.