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Finding the Fourth Proportional to 51,347.52, 70,852.56 and 28,683.71

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Solution

The fourth proportional to 51,347.52, 70,852.56 and 28,683.71 is: 39,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,347.52 : 70,852.56 = 28,683.71 : x
  2. Step 2: Convert to fraction form
    51,347.52/70,852.56 = 28,683.71/x
  3. Step 3: Cross multiply
    51,347.52x = 70,852.56 × 28,683.71
  4. Step 4: Simplify right side
    51,347.52x = 2,032,313,929.53
  5. Step 5: Solve for x
    x = 2,032,313,929.53/51,347.52
  6. Step 6: Final answer
    x = 39,579.59

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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.