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Finding the Fourth Proportional to 5,636.10, 7,780.02 and 5,045.62

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Solution

The fourth proportional to 5,636.10, 7,780.02 and 5,045.62 is: 6,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.10 : 7,780.02 = 5,045.62 : x
  2. Step 2: Convert to fraction form
    5,636.10/7,780.02 = 5,045.62/x
  3. Step 3: Cross multiply
    5,636.10x = 7,780.02 × 5,045.62
  4. Step 4: Simplify right side
    5,636.10x = 39,255,024.51
  5. Step 5: Solve for x
    x = 39,255,024.51/5,636.10
  6. Step 6: Final answer
    x = 6,964.93

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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.