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Finding the Fourth Proportional to 63,389.80, 87,384.74 and 48,256.08

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Solution

The fourth proportional to 63,389.80, 87,384.74 and 48,256.08 is: 66,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,389.80 : 87,384.74 = 48,256.08 : x
  2. Step 2: Convert to fraction form
    63,389.80/87,384.74 = 48,256.08/x
  3. Step 3: Cross multiply
    63,389.80x = 87,384.74 × 48,256.08
  4. Step 4: Simplify right side
    63,389.80x = 4,216,845,004.22
  5. Step 5: Solve for x
    x = 4,216,845,004.22/63,389.80
  6. Step 6: Final answer
    x = 66,522.45

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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.