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Finding the Fourth Proportional to 51,369.01, 70,888.99 and 28,707.99

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Solution

The fourth proportional to 51,369.01, 70,888.99 and 28,707.99 is: 39,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,369.01 : 70,888.99 = 28,707.99 : x
  2. Step 2: Convert to fraction form
    51,369.01/70,888.99 = 28,707.99/x
  3. Step 3: Cross multiply
    51,369.01x = 70,888.99 × 28,707.99
  4. Step 4: Simplify right side
    51,369.01x = 2,035,080,657.47
  5. Step 5: Solve for x
    x = 2,035,080,657.47/51,369.01
  6. Step 6: Final answer
    x = 39,616.89

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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.