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Finding the Fourth Proportional to 52,809.63, 72,877.28 and 28,937.24

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Solution

The fourth proportional to 52,809.63, 72,877.28 and 28,937.24 is: 39,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,809.63 : 72,877.28 = 28,937.24 : x
  2. Step 2: Convert to fraction form
    52,809.63/72,877.28 = 28,937.24/x
  3. Step 3: Cross multiply
    52,809.63x = 72,877.28 × 28,937.24
  4. Step 4: Simplify right side
    52,809.63x = 2,108,867,341.91
  5. Step 5: Solve for x
    x = 2,108,867,341.91/52,809.63
  6. Step 6: Final answer
    x = 39,933.39

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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.