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Finding the Fourth Proportional to 58,784.98, 88,148.10 and 18,798.76

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Solution

The fourth proportional to 58,784.98, 88,148.10 and 18,798.76 is: 28,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,784.98 : 88,148.10 = 18,798.76 : x
  2. Step 2: Convert to fraction form
    58,784.98/88,148.10 = 18,798.76/x
  3. Step 3: Cross multiply
    58,784.98x = 88,148.10 × 18,798.76
  4. Step 4: Simplify right side
    58,784.98x = 1,657,074,976.36
  5. Step 5: Solve for x
    x = 1,657,074,976.36/58,784.98
  6. Step 6: Final answer
    x = 28,188.75

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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.