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Finding the Fourth Proportional to 58,530.94, 87,810.40 and 19,088.10

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Solution

The fourth proportional to 58,530.94, 87,810.40 and 19,088.10 is: 28,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,530.94 : 87,810.40 = 19,088.10 : x
  2. Step 2: Convert to fraction form
    58,530.94/87,810.40 = 19,088.10/x
  3. Step 3: Cross multiply
    58,530.94x = 87,810.40 × 19,088.10
  4. Step 4: Simplify right side
    58,530.94x = 1,676,133,696.24
  5. Step 5: Solve for x
    x = 1,676,133,696.24/58,530.94
  6. Step 6: Final answer
    x = 28,636.71

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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.