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Finding the Fourth Proportional to 64,070.88, 88,416.42 and 35,388.78

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Solution

The fourth proportional to 64,070.88, 88,416.42 and 35,388.78 is: 48,835.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,070.88 : 88,416.42 = 35,388.78 : x
  2. Step 2: Convert to fraction form
    64,070.88/88,416.42 = 35,388.78/x
  3. Step 3: Cross multiply
    64,070.88x = 88,416.42 × 35,388.78
  4. Step 4: Simplify right side
    64,070.88x = 3,128,949,235.77
  5. Step 5: Solve for x
    x = 3,128,949,235.77/64,070.88
  6. Step 6: Final answer
    x = 48,835.75

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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.