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Finding the Fourth Proportional to 51,360.99, 70,875.70 and 28,699.62

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Solution

The fourth proportional to 51,360.99, 70,875.70 and 28,699.62 is: 39,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,360.99 : 70,875.70 = 28,699.62 : x
  2. Step 2: Convert to fraction form
    51,360.99/70,875.70 = 28,699.62/x
  3. Step 3: Cross multiply
    51,360.99x = 70,875.70 × 28,699.62
  4. Step 4: Simplify right side
    51,360.99x = 2,034,105,657.23
  5. Step 5: Solve for x
    x = 2,034,105,657.23/51,360.99
  6. Step 6: Final answer
    x = 39,604.10

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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.