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Finding the Fourth Proportional to 64,010.40, 96,015.60 and 46,384.80

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Solution

The fourth proportional to 64,010.40, 96,015.60 and 46,384.80 is: 69,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,010.40 : 96,015.60 = 46,384.80 : x
  2. Step 2: Convert to fraction form
    64,010.40/96,015.60 = 46,384.80/x
  3. Step 3: Cross multiply
    64,010.40x = 96,015.60 × 46,384.80
  4. Step 4: Simplify right side
    64,010.40x = 4,453,664,402.88
  5. Step 5: Solve for x
    x = 4,453,664,402.88/64,010.40
  6. Step 6: Final answer
    x = 69,577.20

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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.