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Finding the Fourth Proportional to 64,673.20, 97,009.80 and 60,007.60

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Solution

The fourth proportional to 64,673.20, 97,009.80 and 60,007.60 is: 90,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,673.20 : 97,009.80 = 60,007.60 : x
  2. Step 2: Convert to fraction form
    64,673.20/97,009.80 = 60,007.60/x
  3. Step 3: Cross multiply
    64,673.20x = 97,009.80 × 60,007.60
  4. Step 4: Simplify right side
    64,673.20x = 5,821,325,274.48
  5. Step 5: Solve for x
    x = 5,821,325,274.48/64,673.20
  6. Step 6: Final answer
    x = 90,011.40

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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.