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Finding the Fourth Proportional to 58,618.48, 87,888.84 and 19,161.76

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Solution

The fourth proportional to 58,618.48, 87,888.84 and 19,161.76 is: 28,729.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,618.48 : 87,888.84 = 19,161.76 : x
  2. Step 2: Convert to fraction form
    58,618.48/87,888.84 = 19,161.76/x
  3. Step 3: Cross multiply
    58,618.48x = 87,888.84 × 19,161.76
  4. Step 4: Simplify right side
    58,618.48x = 1,684,104,858.76
  5. Step 5: Solve for x
    x = 1,684,104,858.76/58,618.48
  6. Step 6: Final answer
    x = 28,729.93

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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.