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Finding the Fourth Proportional to 13,886.16, 19,162.76 and 7,598.16

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Solution

The fourth proportional to 13,886.16, 19,162.76 and 7,598.16 is: 10,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.16 : 19,162.76 = 7,598.16 : x
  2. Step 2: Convert to fraction form
    13,886.16/19,162.76 = 7,598.16/x
  3. Step 3: Cross multiply
    13,886.16x = 19,162.76 × 7,598.16
  4. Step 4: Simplify right side
    13,886.16x = 145,601,716.52
  5. Step 5: Solve for x
    x = 145,601,716.52/13,886.16
  6. Step 6: Final answer
    x = 10,485.38

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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.