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Finding the Fourth Proportional to 64,376.64, 88,807.20 and 47,580.48

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Solution

The fourth proportional to 64,376.64, 88,807.20 and 47,580.48 is: 65,637.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,376.64 : 88,807.20 = 47,580.48 : x
  2. Step 2: Convert to fraction form
    64,376.64/88,807.20 = 47,580.48/x
  3. Step 3: Cross multiply
    64,376.64x = 88,807.20 × 47,580.48
  4. Step 4: Simplify right side
    64,376.64x = 4,225,489,203.46
  5. Step 5: Solve for x
    x = 4,225,489,203.46/64,376.64
  6. Step 6: Final answer
    x = 65,637.00

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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.