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Finding the Fourth Proportional to 64,831.07, 89,466.80 and 35,023.07

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Solution

The fourth proportional to 64,831.07, 89,466.80 and 35,023.07 is: 48,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,831.07 : 89,466.80 = 35,023.07 : x
  2. Step 2: Convert to fraction form
    64,831.07/89,466.80 = 35,023.07/x
  3. Step 3: Cross multiply
    64,831.07x = 89,466.80 × 35,023.07
  4. Step 4: Simplify right side
    64,831.07x = 3,133,401,376.63
  5. Step 5: Solve for x
    x = 3,133,401,376.63/64,831.07
  6. Step 6: Final answer
    x = 48,331.79

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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.