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Finding the Fourth Proportional to 48,988.71, 73,483.92 and 13,929.30

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Solution

The fourth proportional to 48,988.71, 73,483.92 and 13,929.30 is: 20,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,988.71 : 73,483.92 = 13,929.30 : x
  2. Step 2: Convert to fraction form
    48,988.71/73,483.92 = 13,929.30/x
  3. Step 3: Cross multiply
    48,988.71x = 73,483.92 × 13,929.30
  4. Step 4: Simplify right side
    48,988.71x = 1,023,579,566.86
  5. Step 5: Solve for x
    x = 1,023,579,566.86/48,988.71
  6. Step 6: Final answer
    x = 20,894.19

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1.5x scale

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.