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Finding the Fourth Proportional to 84,658.70, 116,830.32 and 46,421.74

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Solution

The fourth proportional to 84,658.70, 116,830.32 and 46,421.74 is: 64,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,658.70 : 116,830.32 = 46,421.74 : x
  2. Step 2: Convert to fraction form
    84,658.70/116,830.32 = 46,421.74/x
  3. Step 3: Cross multiply
    84,658.70x = 116,830.32 × 46,421.74
  4. Step 4: Simplify right side
    84,658.70x = 5,423,466,739.16
  5. Step 5: Solve for x
    x = 5,423,466,739.16/84,658.70
  6. Step 6: Final answer
    x = 64,062.72

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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.