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Finding the Fourth Proportional to 15,307.56, 22,959.72 and 4,918.50

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Solution

The fourth proportional to 15,307.56, 22,959.72 and 4,918.50 is: 7,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.56 : 22,959.72 = 4,918.50 : x
  2. Step 2: Convert to fraction form
    15,307.56/22,959.72 = 4,918.50/x
  3. Step 3: Cross multiply
    15,307.56x = 22,959.72 × 4,918.50
  4. Step 4: Simplify right side
    15,307.56x = 112,927,382.82
  5. Step 5: Solve for x
    x = 112,927,382.82/15,307.56
  6. Step 6: Final answer
    x = 7,377.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.