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Finding the Fourth Proportional to 14,085.69, 19,437.96 and 7,798.08

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Solution

The fourth proportional to 14,085.69, 19,437.96 and 7,798.08 is: 10,761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.69 : 19,437.96 = 7,798.08 : x
  2. Step 2: Convert to fraction form
    14,085.69/19,437.96 = 7,798.08/x
  3. Step 3: Cross multiply
    14,085.69x = 19,437.96 × 7,798.08
  4. Step 4: Simplify right side
    14,085.69x = 151,578,767.12
  5. Step 5: Solve for x
    x = 151,578,767.12/14,085.69
  6. Step 6: Final answer
    x = 10,761.19

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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.