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Finding the Fourth Proportional to 58,809.30, 87,769.49 and 53,134.18

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Solution

The fourth proportional to 58,809.30, 87,769.49 and 53,134.18 is: 79,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,809.30 : 87,769.49 = 53,134.18 : x
  2. Step 2: Convert to fraction form
    58,809.30/87,769.49 = 53,134.18/x
  3. Step 3: Cross multiply
    58,809.30x = 87,769.49 × 53,134.18
  4. Step 4: Simplify right side
    58,809.30x = 4,663,559,880.17
  5. Step 5: Solve for x
    x = 4,663,559,880.17/58,809.30
  6. Step 6: Final answer
    x = 79,299.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.