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Finding the Fourth Proportional to 64,290.48, 88,762.12 and 44,140.88

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Solution

The fourth proportional to 64,290.48, 88,762.12 and 44,140.88 is: 60,942.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290.48 : 88,762.12 = 44,140.88 : x
  2. Step 2: Convert to fraction form
    64,290.48/88,762.12 = 44,140.88/x
  3. Step 3: Cross multiply
    64,290.48x = 88,762.12 × 44,140.88
  4. Step 4: Simplify right side
    64,290.48x = 3,918,038,087.47
  5. Step 5: Solve for x
    x = 3,918,038,087.47/64,290.48
  6. Step 6: Final answer
    x = 60,942.74

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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.