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Finding the Fourth Proportional to 10,610.76, 14,643.04 and 5,831.20

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Solution

The fourth proportional to 10,610.76, 14,643.04 and 5,831.20 is: 8,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,610.76 : 14,643.04 = 5,831.20 : x
  2. Step 2: Convert to fraction form
    10,610.76/14,643.04 = 5,831.20/x
  3. Step 3: Cross multiply
    10,610.76x = 14,643.04 × 5,831.20
  4. Step 4: Simplify right side
    10,610.76x = 85,386,494.85
  5. Step 5: Solve for x
    x = 85,386,494.85/10,610.76
  6. Step 6: Final answer
    x = 8,047.16

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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.