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Finding the Fourth Proportional to 64,812.15, 89,482.05 and 52,903.80

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Solution

The fourth proportional to 64,812.15, 89,482.05 and 52,903.80 is: 73,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.15 : 89,482.05 = 52,903.80 : x
  2. Step 2: Convert to fraction form
    64,812.15/89,482.05 = 52,903.80/x
  3. Step 3: Cross multiply
    64,812.15x = 89,482.05 × 52,903.80
  4. Step 4: Simplify right side
    64,812.15x = 4,733,940,476.79
  5. Step 5: Solve for x
    x = 4,733,940,476.79/64,812.15
  6. Step 6: Final answer
    x = 73,040.94

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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.