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Finding the Fourth Proportional to 63,862.63, 88,157.55 and 45,477.65

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Solution

The fourth proportional to 63,862.63, 88,157.55 and 45,477.65 is: 62,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,862.63 : 88,157.55 = 45,477.65 : x
  2. Step 2: Convert to fraction form
    63,862.63/88,157.55 = 45,477.65/x
  3. Step 3: Cross multiply
    63,862.63x = 88,157.55 × 45,477.65
  4. Step 4: Simplify right side
    63,862.63x = 4,009,198,203.76
  5. Step 5: Solve for x
    x = 4,009,198,203.76/63,862.63
  6. Step 6: Final answer
    x = 62,778.47

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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.