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Finding the Fourth Proportional to 63,987.95, 88,303.31 and 35,693.64

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Solution

The fourth proportional to 63,987.95, 88,303.31 and 35,693.64 is: 49,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987.95 : 88,303.31 = 35,693.64 : x
  2. Step 2: Convert to fraction form
    63,987.95/88,303.31 = 35,693.64/x
  3. Step 3: Cross multiply
    63,987.95x = 88,303.31 × 35,693.64
  4. Step 4: Simplify right side
    63,987.95x = 3,151,866,557.95
  5. Step 5: Solve for x
    x = 3,151,866,557.95/63,987.95
  6. Step 6: Final answer
    x = 49,257.19

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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.