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Finding the Fourth Proportional to 75,798.32, 104,642.69 and 45,590.39

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Solution

The fourth proportional to 75,798.32, 104,642.69 and 45,590.39 is: 62,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,798.32 : 104,642.69 = 45,590.39 : x
  2. Step 2: Convert to fraction form
    75,798.32/104,642.69 = 45,590.39/x
  3. Step 3: Cross multiply
    75,798.32x = 104,642.69 × 45,590.39
  4. Step 4: Simplify right side
    75,798.32x = 4,770,700,296.58
  5. Step 5: Solve for x
    x = 4,770,700,296.58/75,798.32
  6. Step 6: Final answer
    x = 62,939.40

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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.