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Finding the Fourth Proportional to 46,894, 64,714.52 and 28,988.54

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Solution

The fourth proportional to 46,894, 64,714.52 and 28,988.54 is: 40,004.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,894 : 64,714.52 = 28,988.54 : x
  2. Step 2: Convert to fraction form
    46,894/64,714.52 = 28,988.54/x
  3. Step 3: Cross multiply
    46,894x = 64,714.52 × 28,988.54
  4. Step 4: Simplify right side
    46,894x = 1,875,979,451.60
  5. Step 5: Solve for x
    x = 1,875,979,451.60/46,894
  6. Step 6: Final answer
    x = 40,004.68

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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.