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Finding the Fourth Proportional to 46,648.86, 70,002.45 and 18,946.86

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Solution

The fourth proportional to 46,648.86, 70,002.45 and 18,946.86 is: 28,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,648.86 : 70,002.45 = 18,946.86 : x
  2. Step 2: Convert to fraction form
    46,648.86/70,002.45 = 18,946.86/x
  3. Step 3: Cross multiply
    46,648.86x = 70,002.45 × 18,946.86
  4. Step 4: Simplify right side
    46,648.86x = 1,326,326,619.81
  5. Step 5: Solve for x
    x = 1,326,326,619.81/46,648.86
  6. Step 6: Final answer
    x = 28,432.13

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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.