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Finding the Fourth Proportional to 48,187.80, 72,281.70 and 47,203.65

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Solution

The fourth proportional to 48,187.80, 72,281.70 and 47,203.65 is: 70,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,187.80 : 72,281.70 = 47,203.65 : x
  2. Step 2: Convert to fraction form
    48,187.80/72,281.70 = 47,203.65/x
  3. Step 3: Cross multiply
    48,187.80x = 72,281.70 × 47,203.65
  4. Step 4: Simplify right side
    48,187.80x = 3,411,960,068.21
  5. Step 5: Solve for x
    x = 3,411,960,068.21/48,187.80
  6. Step 6: Final answer
    x = 70,805.48

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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.