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Finding the Fourth Proportional to 58,555.92, 87,838.74 and 19,112.16

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Solution

The fourth proportional to 58,555.92, 87,838.74 and 19,112.16 is: 28,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,555.92 : 87,838.74 = 19,112.16 : x
  2. Step 2: Convert to fraction form
    58,555.92/87,838.74 = 19,112.16/x
  3. Step 3: Cross multiply
    58,555.92x = 87,838.74 × 19,112.16
  4. Step 4: Simplify right side
    58,555.92x = 1,678,788,053.08
  5. Step 5: Solve for x
    x = 1,678,788,053.08/58,555.92
  6. Step 6: Final answer
    x = 28,669.83

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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.