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Finding the Fourth Proportional to 18,934.72, 26,130.10 and 10,437.16

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Solution

The fourth proportional to 18,934.72, 26,130.10 and 10,437.16 is: 14,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.72 : 26,130.10 = 10,437.16 : x
  2. Step 2: Convert to fraction form
    18,934.72/26,130.10 = 10,437.16/x
  3. Step 3: Cross multiply
    18,934.72x = 26,130.10 × 10,437.16
  4. Step 4: Simplify right side
    18,934.72x = 272,724,034.52
  5. Step 5: Solve for x
    x = 272,724,034.52/18,934.72
  6. Step 6: Final answer
    x = 14,403.38

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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.