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Finding the Fourth Proportional to 64,407.69, 88,887.77 and 35,730.18

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Solution

The fourth proportional to 64,407.69, 88,887.77 and 35,730.18 is: 49,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,407.69 : 88,887.77 = 35,730.18 : x
  2. Step 2: Convert to fraction form
    64,407.69/88,887.77 = 35,730.18/x
  3. Step 3: Cross multiply
    64,407.69x = 88,887.77 × 35,730.18
  4. Step 4: Simplify right side
    64,407.69x = 3,175,975,398.81
  5. Step 5: Solve for x
    x = 3,175,975,398.81/64,407.69
  6. Step 6: Final answer
    x = 49,310.50

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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.