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Finding the Fourth Proportional to 51,348.58, 70,854.02 and 28,684.77

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Solution

The fourth proportional to 51,348.58, 70,854.02 and 28,684.77 is: 39,581.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,348.58 : 70,854.02 = 28,684.77 : x
  2. Step 2: Convert to fraction form
    51,348.58/70,854.02 = 28,684.77/x
  3. Step 3: Cross multiply
    51,348.58x = 70,854.02 × 28,684.77
  4. Step 4: Simplify right side
    51,348.58x = 2,032,431,267.28
  5. Step 5: Solve for x
    x = 2,032,431,267.28/51,348.58
  6. Step 6: Final answer
    x = 39,581.06

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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.