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Finding the Fourth Proportional to 62,783.74, 86,641.59 and 34,489.45

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Solution

The fourth proportional to 62,783.74, 86,641.59 and 34,489.45 is: 47,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,783.74 : 86,641.59 = 34,489.45 : x
  2. Step 2: Convert to fraction form
    62,783.74/86,641.59 = 34,489.45/x
  3. Step 3: Cross multiply
    62,783.74x = 86,641.59 × 34,489.45
  4. Step 4: Simplify right side
    62,783.74x = 2,988,220,786.23
  5. Step 5: Solve for x
    x = 2,988,220,786.23/62,783.74
  6. Step 6: Final answer
    x = 47,595.46

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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.