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Finding the Fourth Proportional to 58,352.40, 87,518.95 and 20,906.91

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Solution

The fourth proportional to 58,352.40, 87,518.95 and 20,906.91 is: 31,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,352.40 : 87,518.95 = 20,906.91 : x
  2. Step 2: Convert to fraction form
    58,352.40/87,518.95 = 20,906.91/x
  3. Step 3: Cross multiply
    58,352.40x = 87,518.95 × 20,906.91
  4. Step 4: Simplify right side
    58,352.40x = 1,829,750,758.68
  5. Step 5: Solve for x
    x = 1,829,750,758.68/58,352.40
  6. Step 6: Final answer
    x = 31,356.91

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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.