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Finding the Fourth Proportional to 11,373.40, 15,698.64 and 7,394.92

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Solution

The fourth proportional to 11,373.40, 15,698.64 and 7,394.92 is: 10,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,373.40 : 15,698.64 = 7,394.92 : x
  2. Step 2: Convert to fraction form
    11,373.40/15,698.64 = 7,394.92/x
  3. Step 3: Cross multiply
    11,373.40x = 15,698.64 × 7,394.92
  4. Step 4: Simplify right side
    11,373.40x = 116,090,186.91
  5. Step 5: Solve for x
    x = 116,090,186.91/11,373.40
  6. Step 6: Final answer
    x = 10,207.17

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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.