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Finding the Fourth Proportional to 89,482.35, 133,931.46 and 65,783.62

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Solution

The fourth proportional to 89,482.35, 133,931.46 and 65,783.62 is: 98,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,482.35 : 133,931.46 = 65,783.62 : x
  2. Step 2: Convert to fraction form
    89,482.35/133,931.46 = 65,783.62/x
  3. Step 3: Cross multiply
    89,482.35x = 133,931.46 × 65,783.62
  4. Step 4: Simplify right side
    89,482.35x = 8,810,496,270.69
  5. Step 5: Solve for x
    x = 8,810,496,270.69/89,482.35
  6. Step 6: Final answer
    x = 98,460.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.