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Finding the Fourth Proportional to 67,931.38, 101,802.16 and 57,883.65

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Solution

The fourth proportional to 67,931.38, 101,802.16 and 57,883.65 is: 86,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,931.38 : 101,802.16 = 57,883.65 : x
  2. Step 2: Convert to fraction form
    67,931.38/101,802.16 = 57,883.65/x
  3. Step 3: Cross multiply
    67,931.38x = 101,802.16 × 57,883.65
  4. Step 4: Simplify right side
    67,931.38x = 5,892,680,598.68
  5. Step 5: Solve for x
    x = 5,892,680,598.68/67,931.38
  6. Step 6: Final answer
    x = 86,744.60

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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.