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Finding the Fourth Proportional to 61,463.31, 84,843.20 and 48,038.92

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Solution

The fourth proportional to 61,463.31, 84,843.20 and 48,038.92 is: 66,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,463.31 : 84,843.20 = 48,038.92 : x
  2. Step 2: Convert to fraction form
    61,463.31/84,843.20 = 48,038.92/x
  3. Step 3: Cross multiply
    61,463.31x = 84,843.20 × 48,038.92
  4. Step 4: Simplify right side
    61,463.31x = 4,075,775,812.36
  5. Step 5: Solve for x
    x = 4,075,775,812.36/61,463.31
  6. Step 6: Final answer
    x = 66,312.34

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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.