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Finding the Fourth Proportional to 4,970.18, 7,418.05 and 4,888.16

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Solution

The fourth proportional to 4,970.18, 7,418.05 and 4,888.16 is: 7,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.18 : 7,418.05 = 4,888.16 : x
  2. Step 2: Convert to fraction form
    4,970.18/7,418.05 = 4,888.16/x
  3. Step 3: Cross multiply
    4,970.18x = 7,418.05 × 4,888.16
  4. Step 4: Simplify right side
    4,970.18x = 36,260,615.29
  5. Step 5: Solve for x
    x = 36,260,615.29/4,970.18
  6. Step 6: Final answer
    x = 7,295.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.