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Finding the Fourth Proportional to 58,296.87, 87,423.86 and 20,846.79

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Solution

The fourth proportional to 58,296.87, 87,423.86 and 20,846.79 is: 31,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,296.87 : 87,423.86 = 20,846.79 : x
  2. Step 2: Convert to fraction form
    58,296.87/87,423.86 = 20,846.79/x
  3. Step 3: Cross multiply
    58,296.87x = 87,423.86 × 20,846.79
  4. Step 4: Simplify right side
    58,296.87x = 1,822,506,746.18
  5. Step 5: Solve for x
    x = 1,822,506,746.18/58,296.87
  6. Step 6: Final answer
    x = 31,262.51

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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.