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Finding the Fourth Proportional to 58,564.40, 87,865.04 and 19,112.29

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Solution

The fourth proportional to 58,564.40, 87,865.04 and 19,112.29 is: 28,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,564.40 : 87,865.04 = 19,112.29 : x
  2. Step 2: Convert to fraction form
    58,564.40/87,865.04 = 19,112.29/x
  3. Step 3: Cross multiply
    58,564.40x = 87,865.04 × 19,112.29
  4. Step 4: Simplify right side
    58,564.40x = 1,679,301,953.46
  5. Step 5: Solve for x
    x = 1,679,301,953.46/58,564.40
  6. Step 6: Final answer
    x = 28,674.45

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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.