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Finding the Fourth Proportional to 58,143.99, 87,202.35 and 18,701.58

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Solution

The fourth proportional to 58,143.99, 87,202.35 and 18,701.58 is: 28,047.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,143.99 : 87,202.35 = 18,701.58 : x
  2. Step 2: Convert to fraction form
    58,143.99/87,202.35 = 18,701.58/x
  3. Step 3: Cross multiply
    58,143.99x = 87,202.35 × 18,701.58
  4. Step 4: Simplify right side
    58,143.99x = 1,630,821,724.71
  5. Step 5: Solve for x
    x = 1,630,821,724.71/58,143.99
  6. Step 6: Final answer
    x = 28,047.98

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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.