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Finding the Fourth Proportional to 52,751.76, 79,124.88 and 13,309.24

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Solution

The fourth proportional to 52,751.76, 79,124.88 and 13,309.24 is: 19,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,751.76 : 79,124.88 = 13,309.24 : x
  2. Step 2: Convert to fraction form
    52,751.76/79,124.88 = 13,309.24/x
  3. Step 3: Cross multiply
    52,751.76x = 79,124.88 × 13,309.24
  4. Step 4: Simplify right side
    52,751.76x = 1,053,092,017.89
  5. Step 5: Solve for x
    x = 1,053,092,017.89/52,751.76
  6. Step 6: Final answer
    x = 19,963.16

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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.