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Finding the Fourth Proportional to 51,242.25, 70,714.70 and 28,582.71

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Solution

The fourth proportional to 51,242.25, 70,714.70 and 28,582.71 is: 39,444.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,242.25 : 70,714.70 = 28,582.71 : x
  2. Step 2: Convert to fraction form
    51,242.25/70,714.70 = 28,582.71/x
  3. Step 3: Cross multiply
    51,242.25x = 70,714.70 × 28,582.71
  4. Step 4: Simplify right side
    51,242.25x = 2,021,217,762.84
  5. Step 5: Solve for x
    x = 2,021,217,762.84/51,242.25
  6. Step 6: Final answer
    x = 39,444.36

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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.