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Finding the Fourth Proportional to 63,275.80, 87,316.86 and 34,979.80

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Solution

The fourth proportional to 63,275.80, 87,316.86 and 34,979.80 is: 48,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,275.80 : 87,316.86 = 34,979.80 : x
  2. Step 2: Convert to fraction form
    63,275.80/87,316.86 = 34,979.80/x
  3. Step 3: Cross multiply
    63,275.80x = 87,316.86 × 34,979.80
  4. Step 4: Simplify right side
    63,275.80x = 3,054,326,342.82
  5. Step 5: Solve for x
    x = 3,054,326,342.82/63,275.80
  6. Step 6: Final answer
    x = 48,270.05

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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.