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Finding the Fourth Proportional to 22,970.93, 31,697.93 and 12,898.58

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Solution

The fourth proportional to 22,970.93, 31,697.93 and 12,898.58 is: 17,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.93 : 31,697.93 = 12,898.58 : x
  2. Step 2: Convert to fraction form
    22,970.93/31,697.93 = 12,898.58/x
  3. Step 3: Cross multiply
    22,970.93x = 31,697.93 × 12,898.58
  4. Step 4: Simplify right side
    22,970.93x = 408,858,159.70
  5. Step 5: Solve for x
    x = 408,858,159.70/22,970.93
  6. Step 6: Final answer
    x = 17,798.94

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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.