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Finding the Fourth Proportional to 64,492.96, 88,988.88 and 39,350.56

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Solution

The fourth proportional to 64,492.96, 88,988.88 and 39,350.56 is: 54,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,492.96 : 88,988.88 = 39,350.56 : x
  2. Step 2: Convert to fraction form
    64,492.96/88,988.88 = 39,350.56/x
  3. Step 3: Cross multiply
    64,492.96x = 88,988.88 × 39,350.56
  4. Step 4: Simplify right side
    64,492.96x = 3,501,762,261.77
  5. Step 5: Solve for x
    x = 3,501,762,261.77/64,492.96
  6. Step 6: Final answer
    x = 54,296.81

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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.