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Finding the Fourth Proportional to 53,332.95, 79,942.02 and 28,347.83

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Solution

The fourth proportional to 53,332.95, 79,942.02 and 28,347.83 is: 42,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,332.95 : 79,942.02 = 28,347.83 : x
  2. Step 2: Convert to fraction form
    53,332.95/79,942.02 = 28,347.83/x
  3. Step 3: Cross multiply
    53,332.95x = 79,942.02 × 28,347.83
  4. Step 4: Simplify right side
    53,332.95x = 2,266,182,792.82
  5. Step 5: Solve for x
    x = 2,266,182,792.82/53,332.95
  6. Step 6: Final answer
    x = 42,491.23

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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.