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Finding the Fourth Proportional to 12,671.68, 17,482.63 and 7,362.13

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Solution

The fourth proportional to 12,671.68, 17,482.63 and 7,362.13 is: 10,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.68 : 17,482.63 = 7,362.13 : x
  2. Step 2: Convert to fraction form
    12,671.68/17,482.63 = 7,362.13/x
  3. Step 3: Cross multiply
    12,671.68x = 17,482.63 × 7,362.13
  4. Step 4: Simplify right side
    12,671.68x = 128,709,394.80
  5. Step 5: Solve for x
    x = 128,709,394.80/12,671.68
  6. Step 6: Final answer
    x = 10,157.25

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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.