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Finding the Fourth Proportional to 58,714.39, 87,903.78 and 38,953.63

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Solution

The fourth proportional to 58,714.39, 87,903.78 and 38,953.63 is: 58,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,714.39 : 87,903.78 = 38,953.63 : x
  2. Step 2: Convert to fraction form
    58,714.39/87,903.78 = 38,953.63/x
  3. Step 3: Cross multiply
    58,714.39x = 87,903.78 × 38,953.63
  4. Step 4: Simplify right side
    58,714.39x = 3,424,171,321.72
  5. Step 5: Solve for x
    x = 3,424,171,321.72/58,714.39
  6. Step 6: Final answer
    x = 58,319.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.