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Finding the Fourth Proportional to 64,332.48, 96,497.80 and 28,784.40

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Solution

The fourth proportional to 64,332.48, 96,497.80 and 28,784.40 is: 43,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,332.48 : 96,497.80 = 28,784.40 : x
  2. Step 2: Convert to fraction form
    64,332.48/96,497.80 = 28,784.40/x
  3. Step 3: Cross multiply
    64,332.48x = 96,497.80 × 28,784.40
  4. Step 4: Simplify right side
    64,332.48x = 2,777,631,274.32
  5. Step 5: Solve for x
    x = 2,777,631,274.32/64,332.48
  6. Step 6: Final answer
    x = 43,176.19

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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.