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Finding the Fourth Proportional to 65,130.47, 89,889.71 and 41,259.36

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Solution

The fourth proportional to 65,130.47, 89,889.71 and 41,259.36 is: 56,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,130.47 : 89,889.71 = 41,259.36 : x
  2. Step 2: Convert to fraction form
    65,130.47/89,889.71 = 41,259.36/x
  3. Step 3: Cross multiply
    65,130.47x = 89,889.71 × 41,259.36
  4. Step 4: Simplify right side
    65,130.47x = 3,708,791,905.19
  5. Step 5: Solve for x
    x = 3,708,791,905.19/65,130.47
  6. Step 6: Final answer
    x = 56,944.04

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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.