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Finding the Fourth Proportional to 12,544.76, 17,272.14 and 11,047.16

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Solution

The fourth proportional to 12,544.76, 17,272.14 and 11,047.16 is: 15,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.76 : 17,272.14 = 11,047.16 : x
  2. Step 2: Convert to fraction form
    12,544.76/17,272.14 = 11,047.16/x
  3. Step 3: Cross multiply
    12,544.76x = 17,272.14 × 11,047.16
  4. Step 4: Simplify right side
    12,544.76x = 190,808,094.12
  5. Step 5: Solve for x
    x = 190,808,094.12/12,544.76
  6. Step 6: Final answer
    x = 15,210.18

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Half scale
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Double scale
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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.