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Finding the Fourth Proportional to 12,703.32, 17,528.94 and 7,114.32

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Solution

The fourth proportional to 12,703.32, 17,528.94 and 7,114.32 is: 9,816.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.32 : 17,528.94 = 7,114.32 : x
  2. Step 2: Convert to fraction form
    12,703.32/17,528.94 = 7,114.32/x
  3. Step 3: Cross multiply
    12,703.32x = 17,528.94 × 7,114.32
  4. Step 4: Simplify right side
    12,703.32x = 124,706,488.42
  5. Step 5: Solve for x
    x = 124,706,488.42/12,703.32
  6. Step 6: Final answer
    x = 9,816.84

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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.