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Finding the Fourth Proportional to 58,772.80, 88,159.20 and 47,713.60

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Solution

The fourth proportional to 58,772.80, 88,159.20 and 47,713.60 is: 71,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,772.80 : 88,159.20 = 47,713.60 : x
  2. Step 2: Convert to fraction form
    58,772.80/88,159.20 = 47,713.60/x
  3. Step 3: Cross multiply
    58,772.80x = 88,159.20 × 47,713.60
  4. Step 4: Simplify right side
    58,772.80x = 4,206,392,805.12
  5. Step 5: Solve for x
    x = 4,206,392,805.12/58,772.80
  6. Step 6: Final answer
    x = 71,570.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.