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Finding the Fourth Proportional to 60,783.40, 83,878.50 and 33,928.84

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Solution

The fourth proportional to 60,783.40, 83,878.50 and 33,928.84 is: 46,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,783.40 : 83,878.50 = 33,928.84 : x
  2. Step 2: Convert to fraction form
    60,783.40/83,878.50 = 33,928.84/x
  3. Step 3: Cross multiply
    60,783.40x = 83,878.50 × 33,928.84
  4. Step 4: Simplify right side
    60,783.40x = 2,845,900,205.94
  5. Step 5: Solve for x
    x = 2,845,900,205.94/60,783.40
  6. Step 6: Final answer
    x = 46,820.35

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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.