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Finding the Fourth Proportional to 64,775.70, 97,036.38 and 57,722.76

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Solution

The fourth proportional to 64,775.70, 97,036.38 and 57,722.76 is: 86,470.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,775.70 : 97,036.38 = 57,722.76 : x
  2. Step 2: Convert to fraction form
    64,775.70/97,036.38 = 57,722.76/x
  3. Step 3: Cross multiply
    64,775.70x = 97,036.38 × 57,722.76
  4. Step 4: Simplify right side
    64,775.70x = 5,601,207,674.01
  5. Step 5: Solve for x
    x = 5,601,207,674.01/64,775.70
  6. Step 6: Final answer
    x = 86,470.82

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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.