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Finding the Fourth Proportional to 58,371.72, 87,569.88 and 18,925.77

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Solution

The fourth proportional to 58,371.72, 87,569.88 and 18,925.77 is: 28,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,371.72 : 87,569.88 = 18,925.77 : x
  2. Step 2: Convert to fraction form
    58,371.72/87,569.88 = 18,925.77/x
  3. Step 3: Cross multiply
    58,371.72x = 87,569.88 × 18,925.77
  4. Step 4: Simplify right side
    58,371.72x = 1,657,327,407.81
  5. Step 5: Solve for x
    x = 1,657,327,407.81/58,371.72
  6. Step 6: Final answer
    x = 28,392.64

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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.