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Finding the Fourth Proportional to 83,898.93, 115,782.85 and 45,658.83

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Solution

The fourth proportional to 83,898.93, 115,782.85 and 45,658.83 is: 63,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,898.93 : 115,782.85 = 45,658.83 : x
  2. Step 2: Convert to fraction form
    83,898.93/115,782.85 = 45,658.83/x
  3. Step 3: Cross multiply
    83,898.93x = 115,782.85 × 45,658.83
  4. Step 4: Simplify right side
    83,898.93x = 5,286,509,465.07
  5. Step 5: Solve for x
    x = 5,286,509,465.07/83,898.93
  6. Step 6: Final answer
    x = 63,010.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.