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Finding the Fourth Proportional to 66,831.59, 92,230.65 and 38,159.01

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Solution

The fourth proportional to 66,831.59, 92,230.65 and 38,159.01 is: 52,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,831.59 : 92,230.65 = 38,159.01 : x
  2. Step 2: Convert to fraction form
    66,831.59/92,230.65 = 38,159.01/x
  3. Step 3: Cross multiply
    66,831.59x = 92,230.65 × 38,159.01
  4. Step 4: Simplify right side
    66,831.59x = 3,519,430,295.66
  5. Step 5: Solve for x
    x = 3,519,430,295.66/66,831.59
  6. Step 6: Final answer
    x = 52,661.18

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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.