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Finding the Fourth Proportional to 51,154.50, 70,602.94 and 28,798.50

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Solution

The fourth proportional to 51,154.50, 70,602.94 and 28,798.50 is: 39,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,154.50 : 70,602.94 = 28,798.50 : x
  2. Step 2: Convert to fraction form
    51,154.50/70,602.94 = 28,798.50/x
  3. Step 3: Cross multiply
    51,154.50x = 70,602.94 × 28,798.50
  4. Step 4: Simplify right side
    51,154.50x = 2,033,258,767.59
  5. Step 5: Solve for x
    x = 2,033,258,767.59/51,154.50
  6. Step 6: Final answer
    x = 39,747.41

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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.