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Finding the Fourth Proportional to 12,668.03, 17,482.55 and 7,291.28

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Solution

The fourth proportional to 12,668.03, 17,482.55 and 7,291.28 is: 10,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.03 : 17,482.55 = 7,291.28 : x
  2. Step 2: Convert to fraction form
    12,668.03/17,482.55 = 7,291.28/x
  3. Step 3: Cross multiply
    12,668.03x = 17,482.55 × 7,291.28
  4. Step 4: Simplify right side
    12,668.03x = 127,470,043.29
  5. Step 5: Solve for x
    x = 127,470,043.29/12,668.03
  6. Step 6: Final answer
    x = 10,062.35

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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.