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Finding the Fourth Proportional to 83,875.60, 115,751.52 and 48,072.52

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Solution

The fourth proportional to 83,875.60, 115,751.52 and 48,072.52 is: 66,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,875.60 : 115,751.52 = 48,072.52 : x
  2. Step 2: Convert to fraction form
    83,875.60/115,751.52 = 48,072.52/x
  3. Step 3: Cross multiply
    83,875.60x = 115,751.52 × 48,072.52
  4. Step 4: Simplify right side
    83,875.60x = 5,564,467,019.87
  5. Step 5: Solve for x
    x = 5,564,467,019.87/83,875.60
  6. Step 6: Final answer
    x = 66,341.90

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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.