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Finding the Fourth Proportional to 46,560, 64,246.32 and 28,657.92

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Solution

The fourth proportional to 46,560, 64,246.32 and 28,657.92 is: 39,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,560 : 64,246.32 = 28,657.92 : x
  2. Step 2: Convert to fraction form
    46,560/64,246.32 = 28,657.92/x
  3. Step 3: Cross multiply
    46,560x = 64,246.32 × 28,657.92
  4. Step 4: Simplify right side
    46,560x = 1,841,165,898.85
  5. Step 5: Solve for x
    x = 1,841,165,898.85/46,560
  6. Step 6: Final answer
    x = 39,543.94

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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.