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Finding the Fourth Proportional to 12,407.11, 17,115.94 and 7,368.47

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Solution

The fourth proportional to 12,407.11, 17,115.94 and 7,368.47 is: 10,165.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407.11 : 17,115.94 = 7,368.47 : x
  2. Step 2: Convert to fraction form
    12,407.11/17,115.94 = 7,368.47/x
  3. Step 3: Cross multiply
    12,407.11x = 17,115.94 × 7,368.47
  4. Step 4: Simplify right side
    12,407.11x = 126,118,278.23
  5. Step 5: Solve for x
    x = 126,118,278.23/12,407.11
  6. Step 6: Final answer
    x = 10,165.00

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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.